File "unit-25-price-elasticity-of-demand.html"
Path: /ThinkIB/bm_econ/economics/page/28713/unit-25-price-elasticity-of-demandhtml
File size: 133.38 KB
MIME-type: text/html
Charset: utf-8
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Google Tag Manager -->
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-K5VSFSN');
</script>
<!-- End Google Tag Manager -->
<meta http-equiv="x-ua-compatible" content="IE=Edge"/>
<title>DP Economics: Unit 2.5: Price elasticity of demand</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="robots" content="none" /><meta name="robots" content="noindex, nofollow" />
<base href="https://www.student.thinkib.net" /><meta name="keywords" content="PEDEconomics, ThinkIB.net, InThinking, IB, IBDP, IBMYP" /><meta name="description" content="Unit 2.5: Price elasticity of demand. ThinkIB.net Economics is an InThinking website." />
<link href="css/bootstrap.min.css" rel="stylesheet" media="screen" />
<link href="css/font-awesome-4.7.0/css/font-awesome.min.css" rel="stylesheet">
<link href="/css/top-nav.min.css?v=202305221900" rel="stylesheet" media="screen" />
<link href="/css/style.min.css?v=202308071530" rel="stylesheet" media="screen" />
<link href="/css/style-ib.min.css?v=202305221900" rel="stylesheet" media="screen" />
<link rel="stylesheet" type="text/css" href="/js/jq-fancybox/jquery.fancybox.min.css">
<link href="js/jq-fancybox/jquery.fancybox.min.css" type="text/css" rel="stylesheet">
<link rel="stylesheet" href="/css/side-nav.min.css?v=202305221900" /><link rel="stylesheet" href="/assets/css/ckeditor5-custom.css" type="text/css"><link rel="stylesheet" href="/css/std-access.min.css?v=202305221900" /><link rel="stylesheet" href="/css/snippets.min.css?v=202305221900" /><link rel="stylesheet" href="/css/article.min.css?v=2023061230" /><script src="/js/localdates.min.js?v=202009290900"></script><script src="/js/ifvisible.min.js"></script><script>ifvisible.setIdleDuration(300);</script><script>var tibSitename = "economics";</script>
<script>
const SITE_TAG = "ib"
const SITE_WEB = "ThinkIB.net"
const SITE_DOMAIN = "www.thinkib.net"
const SITE_URI = "https://thinkib.net"
const SITE_CLIENT_CODE = "TIB000001"
let imageThinker = "https://assets.inthinking.net/thinkib/header-thinker-ib.svg";
let imageStudent = "https://assets.inthinking.net/thinkib/header-student-thinkib.svg";
</script>
<script>var userHash = "1164ffdb5b0fa1709243f22ebefcb0a3", userTicket = "fd6a5e8a06cfccf2";</script><script src="/js/user/local-stats.min.js?v=202102101800"></script><link rel="apple-touch-icon-precomposed" sizes="57x57" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-57x57.png" /><link rel="apple-touch-icon-precomposed" sizes="114x114" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-114x114.png" /><link rel="apple-touch-icon-precomposed" sizes="72x72" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-72x72.png" /><link rel="apple-touch-icon-precomposed" sizes="144x144" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-144x144.png" /><link rel="apple-touch-icon-precomposed" sizes="60x60" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-60x60.png" /><link rel="apple-touch-icon-precomposed" sizes="120x120" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-120x120.png" /><link rel="apple-touch-icon-precomposed" sizes="76x76" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-76x76.png" /><link rel="apple-touch-icon-precomposed" sizes="152x152" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/apple-touch-icon-152x152.png" /><link rel="icon" type="image/png" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/favicon-196x196.png" sizes="196x196" /><link rel="icon" type="image/png" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/favicon-96x96.png" sizes="96x96" /><link rel="icon" type="image/png" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/favicon-32x32.png" sizes="32x32" /><link rel="icon" type="image/png" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/favicon-16x16.png" sizes="16x16" /><link rel="icon" type="image/png" href="https://assets.inthinking.net/thinkib/favicon/student-thinkib/favicon-128.png" sizes="128x128" /><meta name="application-name" content=" "/><meta name="msapplication-TileColor" content="#FFFFFF" /><meta name="msapplication-TileImage" content="https://assets.inthinking.net/thinkib/favicon/student-thinkib/mstile-144x144.png" /><meta name="msapplication-square70x70logo" content="https://assets.inthinking.net/thinkib/favicon/student-thinkib/mstile-70x70.png" /><meta name="msapplication-square150x150logo" content="https://assets.inthinking.net/thinkib/favicon/student-thinkib/mstile-150x150.png" /><meta name="msapplication-wide310x150logo" content="https://assets.inthinking.net/thinkib/favicon/student-thinkib/mstile-310x150.png" /><meta name="msapplication-square310x310logo" content="https://assets.inthinking.net/thinkib/favicon/student-thinkib/mstile-310x310.png" />
</head>
<body onunload="" class="student-access">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-K5VSFSN"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- End Google Tag Manager (noscript) -->
<div id="header">
<div class="wmap">
<div class="layout-wrapper">
<div class="container-fluid">
<div class="pull-right visible-phone">
<a href="https://www.inthinking.net">
<img src="https://assets.inthinking.net/thinkib/header-logo.svg" style="height: 45px; width: auto">
</a>
</div>
<div class="visible-phone" style="clear:both;"></div>
<div class="pull-left">
<h1><a href="/economics?lg=50735"><span style="font-size: .8em;">IBDP Economics - Student pages</span></a></h1>
<p class="slogan hidden-phone"><span class="slogan"><em>InThinking</em> Subject Sites for teachers & their classes</span></p>
<p class="hidden-phone"><em>Group: <br>Teacher: </em></p>
</div>
<div class="pull-right text-right">
<a class="hidden-phone" href="https://www.inthinking.net">
<img src="https://assets.inthinking.net/thinkib/header-logo.svg" style="height: 70px; width: auto">
</a>
<div class="search"><a href="#" class="toggle-menu-search" data-toggle="dropdown" title="Search"><i class="fa fa-2x fa-search"></i></a></div>
</div>
</div>
</div>
</div>
</div>
<div id="topmenu">
<div class="layout-wrapper">
<div>
<nav class="top-nav"><ul class="level-0"><li><a href="https://www.student.thinkib.net/economics?lg=50735"><i class="fa fa-home"></i> Home</a></li><li ><a href="https://www.student.thinkib.net/economics/page/20131/start-here">Start here</a></li><li ><a href="https://www.student.thinkib.net/economics/page/27378/the-ib-core">The IB core</a></li><li ><a href="https://www.student.thinkib.net/economics/page/32112/textbook">Textbook</a></li><li class="selected"><a href="https://www.student.thinkib.net/economics/page/20132/units-1-2-microeconomics">Units 1-2: Microeconomics</a></li><li ><a href="https://www.student.thinkib.net/economics/page/21842/unit-3-macroeconomics-">Unit 3: Macroeconomics </a></li><li ><a href="https://www.student.thinkib.net/economics/page/21844/unit-4-global-economy">Unit 4: Global economy</a></li><li ><a href="https://www.student.thinkib.net/economics/page/21380/assessment">Assessment</a></li><li ><a href="https://www.student.thinkib.net/economics/page/4332/exam-style-questions">Exam style questions</a></li></ul></nav>
</div>
</div>
</div>
<nav id="nav-menu-search" class="shadow-md" style="display: none;">
<div class="layout-wrapper">
<form class="form-inline" role="search" method="get" action="economics/search">
<input id="nav-search" name="s" type="search" placeholder="Search Economics..." value="">
<button class="btn btn-sm btn-primary" type="submit">
Search
</button>
<a href="#" class="toggle-menu-search" title="Close">
<i class="fa fa-lg fa-times gray"></i>
</a>
</form>
</div>
</nav>
<div class="layout-wrapper">
<div id="container" class="container-fluid">
<div id="content">
<div class="row-fluid">
<div id="left-column" class="span3"> <div id="userbox">
<div class="dropdown" style="display: flex; align-items: center;">
<a href="#" data-toggle="dropdown" class="dropdown-toggle btn">
<img style="width: 16px; height: 16px; margin: -2px 0 0 0;" src="https://assets.inthinking.net/thinkib/user/generic/32-generic-user.png">
IB Docs (2) Team <i class="fa fa-caret-down"></i>
</a>
<ul class="dropdown-menu" id="menu1">
<li class="dropdown-submenu"><a href="#" data-toggle="dropdown" class="dropdown-toggle"><i class="fa fa-caret-right fixwidth gray"></i> IBDP Business Management</a><ul class="dropdown-menu" style="padding: 0; border-radius: 3px; margin-left: -4px; margin-top: -1px;"><li><a href="https://www.student.thinkib.net/businessmanagement?lg=51189"><i class="fa fa-group gray fixwidth"></i> 1</a></li><li><a href="https://www.student.thinkib.net/businessmanagement?lg=51192"><i class="fa fa-group gray fixwidth"></i> 2</a></li></ul></li><li><a href="https://www.student.thinkib.net/economics?lg=50735"><i class="fa fa-caret-right fixwidth gray"></i> IBDP Economics</a></li><li class="divider"></li><li><a href="https://www.student.thinkib.net"><i class="fa fa-dashboard fixwidth colored"></i> Dashboard</a></li><li><a href="https://www.student.thinkib.net/?pan=tasks"><i class="fa fa-pencil fixwidth colored"></i> All tasks</a></li><li><a href="https://www.student.thinkib.net/std/profile-editor"><i class="fa fa-user fixwidth colored"></i> My profile</a></li>
<li class="divider"></li>
<li>
<a href="https://www.student.thinkib.net?logout=1">
<i class="fa fa-power-off fixwidth"></i> Log out
</a>
</li>
</ul>
</div>
</div><div style="margin: 20px 0;"><a href="https://www.student.thinkib.net/economics/sitemap" class="btn btn-default btn-block"><i class="fa fa-sitemap fixwidth colored"></i>Sitemap</a></div><div id="topicsnav" style="margin: 0; padding: 0px;"> <div class="row-fluid accordion-group" style="border: 0px; margin-bottom: 0px;"> <div style="padding: 6px 4px 6px 8px; background: #204a87;"> <a class="accordion-toggle std-header" style="color: #fff; text-shadow: 1px 1px 1px #444; padding: 0px; text-decoration: none; font-size: 16px; font-weight: 400;" data-toggle="collapse" data-parent="#topicsnav" href="#side-box-topics-list"> <i class="fa fa-caret-right fa-rotate-90 white" style="margin-left: 4px;"></i> Topics </a> <span id="sidetreecontrol"> <a title="Collapse all" rel="collapse" href="#"> <i class="fa fa-minus-circle"></i> </a> <a title="Expand all" rel="expand" href="#"> <i class="fa fa-plus-circle"></i> </a> </span> </div> <div id="side-box-topics-list" class="accordion-body in collapse"> <div class="accordion-inner" style="line-height: 1.7em; padding: 0;"> <nav class="side-nav" id="sidemenu"><ul class="level-0 always-expanded"><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20131/start-here" title="Start here">Start here</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/46026/getting-started-for-students" title="Getting started for students">Getting started for students</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/45198/predicted-grade-calculator" title="Predicted grade calculator">Predicted grade calculator</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Using the student access on the site ">Using the student access on the site </a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32021/giving-students-access-to-the-inthinking-site" title="Giving students access to the Inthinking site">Giving students access to the Inthinking site</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20150/recommended-reading-" title="Recommended reading ">Recommended reading </a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Economics games">Economics games</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/26967/activities-and-simulations" title="Activities and simulations">Activities and simulations</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41381/crosswords" title="Crosswords">Crosswords</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Old curriculum resources">Old curriculum resources</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29986/price-discrimination-old-syllabus-hl" title="Price discrimination (old syllabus) HL">Price discrimination (old syllabus) HL</a></li></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/27378/the-ib-core" title="The IB core">The IB core</a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/1583/extended-essay" title="Extended essay">Extended essay</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/27917/the-5-year-rule-in-economics-" title="The 5 year rule in economics ">The 5 year rule in economics </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21411/using-the-ee-markbands-" title="Using the EE markbands ">Using the EE markbands </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21412/focus-on-the-criteria-" title="Focus on the criteria ">Focus on the criteria </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20780/extended-essay-checklist" title="Extended essay checklist">Extended essay checklist</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20786/exemplar-extended-essay-" title="Exemplar extended essay ">Exemplar extended essay </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20819/annotated-extended-essay-sample-1-grading-criteria" title="Annotated extended essay sample 1 (grading criteria)">Annotated extended essay sample 1 (grading criteria)</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/36082/annotated-extended-essay-sample-1" title="Annotated extended essay sample 1">Annotated extended essay sample 1</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/36110/annotated-extended-essay-sample-1-grading-criteria" title="Annotated extended essay sample 1 (grading criteria)">Annotated extended essay sample 1 (grading criteria)</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20792/annotated-extended-essay-sample-2" title="Annotated extended essay sample 2">Annotated extended essay sample 2</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20820/annotated-extended-essay-sample-2-grading-criteria" title="Annotated extended essay sample 2 (grading criteria)">Annotated extended essay sample 2 (grading criteria)</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/26701/annotated-extended-essay-sample-3" title="Annotated extended essay sample 3">Annotated extended essay sample 3</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/26702/annotated-extended-essay-sample-3-grading-criteria" title="Annotated extended essay sample 3 (grading criteria)">Annotated extended essay sample 3 (grading criteria)</a></li></ul></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32112/textbook" title="Textbook">Textbook</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33061/contents-page" title="Contents page">Contents page</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/37990/textbook-approach-to-the-new-ib-economics-examination-specificat" title="Textbook approach to the new IB Economics examination specification">Textbook approach to the new IB Economics examination specification</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33060/chapter-1-introduction-to-economics" title="Chapter 1: Introduction to Economics">Chapter 1: Introduction to Economics</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32395/unit-11-introduction-to-economics" title="Unit 1.1: Introduction to Economics">Unit 1.1: Introduction to Economics</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32541/unit-12-how-do-economists-approach-the-world" title="Unit 1.2: How do economists approach the world?">Unit 1.2: How do economists approach the world?</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33063/chapter-2-microeconomics" title="Chapter 2: Microeconomics">Chapter 2: Microeconomics</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32533/unit-21-demand-theory" title="Unit 2.1: Demand theory">Unit 2.1: Demand theory</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32555/unit-22-supply-theory" title="Unit 2.2: Supply theory">Unit 2.2: Supply theory</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32567/unit-23-competitive-market-equilibrium" title="Unit 2.3: Competitive market equilibrium">Unit 2.3: Competitive market equilibrium</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32575/unit-241-behavioural-economics-hl" title="Unit 2.4(1): Behavioural economics (HL)">Unit 2.4(1): Behavioural economics (HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32798/unit-242-business-objectives-hl" title="Unit 2.4(2): Business objectives (HL)">Unit 2.4(2): Business objectives (HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32663/unit-251-price-elasticity-of-demand-ped" title="Unit 2.5(1): Price elasticity of demand (PED)">Unit 2.5(1): Price elasticity of demand (PED)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32788/unit-252-income-elasticity-of-demand-yed-" title="Unit 2.5(2): Income elasticity of demand (YED) ">Unit 2.5(2): Income elasticity of demand (YED) </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32789/unit-26-price-elasticity-of-supply-pes-" title="Unit 2.6: Price elasticity of supply (PES) ">Unit 2.6: Price elasticity of supply (PES) </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33388/unit-271-governments-in-markets-tax-and-subsidy-" title="Unit 2.7(1): Governments in markets - tax and subsidy ">Unit 2.7(1): Governments in markets - tax and subsidy </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33424/unit-272-governments-in-markets-price-controls" title="Unit 2.7(2): Governments in markets - price controls">Unit 2.7(2): Governments in markets - price controls</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33665/unit-281-market-failure-externalities" title="Unit 2.8(1): Market failure – externalities">Unit 2.8(1): Market failure – externalities</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/33808/unit-282-market-failure-merit-goods-and-demerit-goods-" title="Unit 2.8(2): Market failure - merit goods and demerit goods ">Unit 2.8(2): Market failure - merit goods and demerit goods </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34054/unit-283-government-intervention-to-manage-externalities-merit-a" title="Unit 2.8(3): Government intervention to manage externalities, merit and demerit goods ">Unit 2.8(3): Government intervention to manage externalities, merit and demerit goods </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34082/unit-284-common-access-pool-resources" title="Unit 2.8(4): Common access (pool) resources">Unit 2.8(4): Common access (pool) resources</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34087/unit-29-public-goods" title="Unit 2.9: Public goods">Unit 2.9: Public goods</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34247/unit-210-asymmetric-information-hl" title="Unit 2.10: Asymmetric information (HL)">Unit 2.10: Asymmetric information (HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35118/unit-2111-market-power-theory-of-production-and-costs-hl" title="Unit 2.11(1) Market power - Theory of production and costs (HL)">Unit 2.11(1) Market power - Theory of production and costs (HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35125/unit-2112-market-power-perfect-competitionhl" title="Unit 2.11(2) Market power - Perfect competition(HL)">Unit 2.11(2) Market power - Perfect competition(HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35147/unit-2113-market-power-monopolyhl" title="Unit 2.11(3) Market power - Monopoly(HL)">Unit 2.11(3) Market power - Monopoly(HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35151/unit-2114-market-power-monopolistic-competitionhl" title="Unit 2.11(4) Market power - Monopolistic competition(HL)">Unit 2.11(4) Market power - Monopolistic competition(HL)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35153/unit-2115-market-power-oligopolyhl" title="Unit 2.11(5) Market power - Oligopoly(HL)">Unit 2.11(5) Market power - Oligopoly(HL)</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41603/economics-real-world-examples-and-extension-material-" title="Economics real world examples and extension material ">Economics real world examples and extension material </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/43378/opportunity-cost-and-production-possibility-curves" title="Opportunity cost and production possibility curves">Opportunity cost and production possibility curves</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42559/demand-theory" title="Demand theory">Demand theory</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41886/the-price-mechanism" title="The price mechanism">The price mechanism</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/43188/market-demand-and-supply" title="Market demand and supply">Market demand and supply</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41705/demerit-goods" title="Demerit goods">Demerit goods</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42275/market-failure-and-climate-change" title="Market failure and climate change">Market failure and climate change</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42925/market-power" title="Market power">Market power</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42099/applying-game-theory" title="Applying game theory">Applying game theory</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34407/chapter-3-macroeconomics" title="Chapter 3: Macroeconomics">Chapter 3: Macroeconomics</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34355/unit-311-measuring-the-level-of-economic-activity" title="Unit 3.1(1): Measuring the level of economic activity">Unit 3.1(1): Measuring the level of economic activity</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34432/unit-312-measuring-economic-development" title="Unit 3.1(2): Measuring Economic Development">Unit 3.1(2): Measuring Economic Development</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34485/unit-321-variations-in-economic-activity-aggregate-demand-ad-" title="Unit 3.2(1): Variations in economic activity - aggregate demand (AD) ">Unit 3.2(1): Variations in economic activity - aggregate demand (AD) </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34487/unit-322-variations-in-economic-activity-aggregate-supplyas" title="Unit 3.2(2): Variations in economic activity - aggregate supply(AS)">Unit 3.2(2): Variations in economic activity - aggregate supply(AS)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34758/unit-331-macroeconomic-objectives-economic-growth" title="Unit 3.3(1) Macroeconomic objectives: economic growth">Unit 3.3(1) Macroeconomic objectives: economic growth</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34771/unit-332-macroeconomic-objectives-unemployment-" title="Unit 3.3(2) Macroeconomic objectives: unemployment ">Unit 3.3(2) Macroeconomic objectives: unemployment </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34778/unit-333-macroeconomic-objectives-inflation-and-deflation-" title="Unit 3.3(3) Macroeconomic objectives: inflation and deflation ">Unit 3.3(3) Macroeconomic objectives: inflation and deflation </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34925/unit-341-economics-of-inequality-and-poverty" title="Unit 3.4(1) Economics of inequality and poverty">Unit 3.4(1) Economics of inequality and poverty</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34946/unit-342-policies-to-improve-equality-equity-and-poverty" title="Unit 3.4(2) Policies to improve equality, equity and poverty">Unit 3.4(2) Policies to improve equality, equity and poverty</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34993/unit-35-government-management-of-the-economy-monetary-policy" title="Unit 3.5 Government management of the economy – monetary policy">Unit 3.5 Government management of the economy – monetary policy</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/34962/unit-36-government-management-of-the-economy-fiscal-policy" title="Unit 3.6 Government management of the economy – fiscal policy">Unit 3.6 Government management of the economy – fiscal policy</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35017/unit-371-market-based-supply-side-policies-" title="Unit 3.7(1) Market based supply-side policies ">Unit 3.7(1) Market based supply-side policies </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35018/unit-372-interventionist-supply-side-policies-" title="Unit 3.7(2) Interventionist supply-side policies ">Unit 3.7(2) Interventionist supply-side policies </a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/45803/economics-real-world-examples-and-extension-material-" title="Economics real world examples and extension material ">Economics real world examples and extension material </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42639/measuring-economic-well-being" title="Measuring economic well-being">Measuring economic well-being</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/43044/inflation" title="Inflation">Inflation</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42350/inequality" title="Inequality">Inequality</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41639/inequity" title="Inequity">Inequity</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35414/chapter-4-the-global-economy" title="Chapter 4: The Global Economy">Chapter 4: The Global Economy</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35346/unit-41-benefits-of-international-trade" title="Unit 4.1 Benefits of international trade">Unit 4.1 Benefits of international trade</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35348/unit-4243-trade-protectionism" title="Unit 4.2/4.3 Trade protectionism">Unit 4.2/4.3 Trade protectionism</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35407/unit-44-economic-integration-" title="Unit 4.4 Economic integration ">Unit 4.4 Economic integration </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35409/unit-45-exchange-rates" title="Unit 4.5 Exchange rates">Unit 4.5 Exchange rates</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35413/unit-46-balance-of-payments-" title="Unit 4.6 Balance of payments ">Unit 4.6 Balance of payments </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35675/unit-47-sustainable-development" title="Unit 4.7 Sustainable development">Unit 4.7 Sustainable development</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35685/unit-48-measuring-development-" title="Unit 4.8 Measuring development ">Unit 4.8 Measuring development </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35687/unit-49-barriers-to-economic-development" title="Unit 4.9 Barriers to economic development">Unit 4.9 Barriers to economic development</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/35702/unit-410-economic-growth-and-economic-development-strategies" title="Unit 4.10: Economic growth and economic development strategies">Unit 4.10: Economic growth and economic development strategies</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/45804/economics-real-world-examples-and-extension-material-" title="Economics real world examples and extension material ">Economics real world examples and extension material </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41927/foreign-currency" title="Foreign currency">Foreign currency</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/43532/exchange-rates" title="Exchange rates">Exchange rates</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/43804/balance-of-payments" title="Balance of payments">Balance of payments</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41796/economic-development" title="Economic development">Economic development</a></li></ul></ul></ul><li class="ancestor parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a class="" href="https://www.student.thinkib.net/economics/page/20132/units-1-2-microeconomics" title="Units 1-2: Microeconomics">Units 1-2: Microeconomics</a></li><ul class="level-1 expanded"><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Unit 1: Introduction to economics">Unit 1: Introduction to economics</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20091/introductory-activity" title="Introductory activity">Introductory activity</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20093/unit-11-scarcity-choice-and-opportunity-cost" title="Unit 1.1: Scarcity, choice and opportunity cost">Unit 1.1: Scarcity, choice and opportunity cost</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21647/factors-of-production" title="Factors of production">Factors of production</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20114/economic-systems" title="Economic systems">Economic systems</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20134/public-and-private-sectors" title="Public and private sectors">Public and private sectors</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/28055/unit-12-economics-as-a-social-science" title="Unit 1.2: Economics as a social science">Unit 1.2: Economics as a social science</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29921/circular-flow-of-national-income" title="Circular flow of national income">Circular flow of national income</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29829/unit-1-review-terms" title="Unit 1: Review terms">Unit 1: Review terms</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/41600/introduction-to-economics-crossword" title="Introduction to economics crossword">Introduction to economics crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/4331/unit-1-multiple-choice-quiz" title="Unit 1: Multiple choice quiz">Unit 1: Multiple choice quiz</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20177/unit-21-23-competitive-markets-demand-and-supply" title="Unit 2.1-2.3: Competitive markets - demand and supply">Unit 2.1-2.3: Competitive markets - demand and supply</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/28517/unit-21-demand" title="Unit 2.1: Demand">Unit 2.1: Demand</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/22349/determinants-of-demand" title="Determinants of demand">Determinants of demand</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29949/unit-22-supply-" title="Unit 2.2: Supply ">Unit 2.2: Supply </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20184/changes-to-supply-and-demand-" title="Changes to supply and demand ">Changes to supply and demand </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21992/practise-exercises" title="Practise exercises">Practise exercises</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/26112/gold-exchange-game-demand-and-supply" title="Gold exchange game: Demand and supply">Gold exchange game: Demand and supply</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20194/unit-23-competitive-market-equilibrium" title="Unit 2.3: Competitive market equilibrium">Unit 2.3: Competitive market equilibrium</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20144/producer-and-consumer-surplus" title="Producer and consumer surplus">Producer and consumer surplus</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/22351/veblen-goods-and-super-luxury-goods" title="Veblen goods and super luxury goods">Veblen goods and super luxury goods</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/25677/are-cryptocurrencies-the-new-tulipmania" title="Are Cryptocurrencies the new Tulipmania?">Are Cryptocurrencies the new Tulipmania?</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20472/unit-21-23-multiple-choice-quiz" title="Unit 2.1-2.3: Multiple choice quiz">Unit 2.1-2.3: Multiple choice quiz</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20113/unit-24-consumer-and-producer-behaviour-hl-only" title="Unit 2.4: Consumer and producer behaviour (HL only)">Unit 2.4: Consumer and producer behaviour (HL only)</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/36073/behavioural-economics-consumer-biases-nudge-theory-hl-only" title="Behavioural economics: Consumer biases / nudge theory (HL only)">Behavioural economics: Consumer biases / nudge theory (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20378/business-objectives-hl-only" title="Business objectives (HL only)">Business objectives (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/28741/unit-21-24-review-terms-" title="Unit 2.1-2.4: Review terms ">Unit 2.1-2.4: Review terms </a></li></ul><li class="ancestor parent" style="padding-left: 14px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a class="" href="https://www.student.thinkib.net/economics/page/20195/unit-25-26-elasticity" title="Unit 2.5-2.6: Elasticity">Unit 2.5-2.6: Elasticity</a></li><ul class="level-2 expanded"><li class="current parent" style="padding-left: 28px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a class="" href="https://www.student.thinkib.net/economics/page/28713/unit-25-price-elasticity-of-demand" title="Unit 2.5: Price elasticity of demand">Unit 2.5: Price elasticity of demand</a></li><ul class="level-3 expanded"><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21545/determinants-of-price-elasticity-" title="Determinants of price elasticity ">Determinants of price elasticity </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21532/ped-elasticity-and-sales-revenue" title="PED elasticity and sales revenue?">PED elasticity and sales revenue?</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21259/unit-25-income-elasticity-of-demand-yed" title="Unit 2.5: Income elasticity of demand (YED)">Unit 2.5: Income elasticity of demand (YED)</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21200/unit-26-price-elasticity-of-supply" title="Unit 2.6: Price elasticity of supply">Unit 2.6: Price elasticity of supply</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20207/perfectly-elastic-inelastic-supply-curves" title="Perfectly elastic / inelastic supply curves">Perfectly elastic / inelastic supply curves</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20230/a-mathematical-note-about-elasticity-" title="A mathematical note about elasticity ">A mathematical note about elasticity </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/39037/demand-and-supply-crossword" title="Demand and supply crossword">Demand and supply crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29021/unit-25-26-review-terms" title="Unit 2.5-2.6: Review terms">Unit 2.5-2.6: Review terms</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20474/unit-25-26-multiple-choice-quiz-" title="Unit 2.5-2.6: Multiple choice quiz ">Unit 2.5-2.6: Multiple choice quiz </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/44474/unit-21-25-competitive-markets-quiz" title="Unit 2.1- 2.5: Competitive markets quiz">Unit 2.1- 2.5: Competitive markets quiz</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20243/unit-27-the-role-of-government-in-microeconomics-" title="Unit 2.7: The role of government in microeconomics ">Unit 2.7: The role of government in microeconomics </a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/26590/indirect-taxation" title="Indirect taxation">Indirect taxation</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20246/ped-and-the-burden-of-tax-hl-only-" title="PED and the burden of tax (HL only) ">PED and the burden of tax (HL only) </a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20277/government-subsidies-" title="Government subsidies ">Government subsidies </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29117/unit-27-indirect-tax-and-subsidy-review-terms" title="Unit 2.7: Indirect tax and subsidy review terms">Unit 2.7: Indirect tax and subsidy review terms</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20287/price-controls-maximum-price-" title="Price controls − maximum price ">Price controls − maximum price </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20288/minimum-price-" title="Minimum price ">Minimum price </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21540/minimum-wage-" title="Minimum wage ">Minimum wage </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/38849/labour-market-crossword" title="Labour market crossword">Labour market crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29260/unit-27-price-controls-review-terms" title="Unit 2.7: Price controls review terms">Unit 2.7: Price controls review terms</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20303/unit-28-210-market-failure-" title="Unit 2.8-2.10: Market failure ">Unit 2.8-2.10: Market failure </a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21543/unit-28-merit-goods-" title="Unit 2.8: Merit goods ">Unit 2.8: Merit goods </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/23123/unit-28-demerit-goods-negative-externalities" title="Unit 2.8: Demerit goods / negative externalities">Unit 2.8: Demerit goods / negative externalities</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/38850/market-failure-crossword" title="Market failure crossword">Market failure crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29262/unit-29-economics-of-the-environment-and-public-goods-" title="Unit 2.9: Economics of the environment and public goods ">Unit 2.9: Economics of the environment and public goods </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20332/unit-210-asymmetric-information-hl-only" title="Unit 2.10: Asymmetric information (HL only)">Unit 2.10: Asymmetric information (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29828/unit-28-210-market-failure-review-sheet" title="Unit 2.8-2.10: Market failure review sheet">Unit 2.8-2.10: Market failure review sheet</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29827/unit-28-210-market-failure-review-terms" title="Unit 2.8-2.10: Market failure review terms">Unit 2.8-2.10: Market failure review terms</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20479/unit-27-210-multiple-choice-quiz-" title="Unit 2.7-2.10: Multiple choice quiz ">Unit 2.7-2.10: Multiple choice quiz </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/44501/unit-27-210-government-failure-revision-quiz" title="Unit 2.7-2.10 Government failure revision quiz">Unit 2.7-2.10 Government failure revision quiz</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20330/unit-211-market-power-hl-only" title="Unit 2.11: Market power (HL only)">Unit 2.11: Market power (HL only)</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29835/assessment-map" title="Assessment map">Assessment map</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21528/production-hl-only" title="Production (HL only)">Production (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29978/revenue-theory-hl-only" title="Revenue theory (HL only)">Revenue theory (HL only)</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20357/costs-of-production-hl-only" title="Costs of production (HL only)">Costs of production (HL only)</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21286/economies-and-diseconomies-of-scale-hl-only" title="Economies and diseconomies of scale (HL only)">Economies and diseconomies of scale (HL only)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/22494/long-run-average-cost-curves-hl-only" title="Long run average cost curves (HL only)">Long run average cost curves (HL only)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29838/breakeven-hl-only" title="Breakeven (HL only)">Breakeven (HL only)</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20340/economic-profit-hl-only" title="Economic profit (HL only)">Economic profit (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/39082/market-power-crossword" title="Market power crossword">Market power crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/22495/revision-exercise-on-cost-and-revenue-hl-only" title="Revision exercise on cost and revenue (HL only)">Revision exercise on cost and revenue (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29845/unit-211-costs-revenue-and-profit-review-sheet-hl-only" title="Unit 2.11: Costs, revenue and profit review sheet (HL only)">Unit 2.11: Costs, revenue and profit review sheet (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/44484/unit-211-multiple-choice-quiz-sl-units" title="Unit 2.11: Multiple choice quiz (SL units)">Unit 2.11: Multiple choice quiz (SL units)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29846/market-structures-hl-only" title="Market structures (HL only)">Market structures (HL only)</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29981/perfect-competition-hl-only" title="Perfect competition (HL only)">Perfect competition (HL only)</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/24486/profit-in-perfect-competition-hl-only" title="Profit in perfect competition (HL only)">Profit in perfect competition (HL only)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21302/efficiency-in-perfect-competition-hl-only" title="Efficiency in perfect competition (HL only)">Efficiency in perfect competition (HL only)</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20430/monopoly-hl-only" title="Monopoly (HL only)">Monopoly (HL only)</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/24529/profit-and-revenue-maximisation-in-monopoly-hl-only" title="Profit and revenue maximisation in monopoly (HL only)">Profit and revenue maximisation in monopoly (HL only)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21306/a-comparison-of-monopoly-and-perfect-competition-hl-only" title="A comparison of monopoly and perfect competition? (HL only)">A comparison of monopoly and perfect competition? (HL only)</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20435/monopolistic-competition-hl-only" title="Monopolistic competition (HL only)">Monopolistic competition (HL only)</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20436/oligopoly-hl-only" title="Oligopoly (HL only)">Oligopoly (HL only)</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/22310/game-theory-hl-only" title="Game theory (HL only)">Game theory (HL only)</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29918/unit-211-market-structures-review-sheet-hl-only" title="Unit 2.11: Market structures review sheet (HL only)">Unit 2.11: Market structures review sheet (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32337/unit-211-diagram-revision-" title="Unit 2.11: Diagram revision ">Unit 2.11: Diagram revision </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20480/unit-211-multiple-choice-quiz-hl-only" title="Unit 2.11: Multiple choice quiz (HL only)">Unit 2.11: Multiple choice quiz (HL only)</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32425/unit-212-the-markets-inability-to-achieve-equity-hl-only" title="Unit 2.12: The market’s inability to achieve equity (HL only)">Unit 2.12: The market’s inability to achieve equity (HL only)</a></li></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21842/unit-3-macroeconomics-" title="Unit 3: Macroeconomics ">Unit 3: Macroeconomics </a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/3942/unit-31-measuring-economic-activity-and-illustrating-its-variati" title="Unit 3.1: Measuring economic activity and illustrating its variations">Unit 3.1: Measuring economic activity and illustrating its variations</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20558/calculating-national-income" title="Calculating national income">Calculating national income</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21297/gdp-gni-as-a-measure-of-living-standards" title="GDP / GNI as a measure of living standards">GDP / GNI as a measure of living standards</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20567/national-income-statistics" title="National income statistics">National income statistics</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21580/the-business-cycle" title="The business cycle">The business cycle</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29931/unit-31-economic-activity-review-sheet" title="Unit 3.1: Economic activity review sheet">Unit 3.1: Economic activity review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20592/unit-32-variations-in-economic-activityaggregate-demand-and-aggr" title="Unit 3.2: Variations in economic activity—aggregate demand and aggregate supply">Unit 3.2: Variations in economic activity—aggregate demand and aggregate supply</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/29933/aggregate-demand-and-supply" title="Aggregate demand and supply">Aggregate demand and supply</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21582/components-of-aggregate-demand" title="Components of aggregate demand">Components of aggregate demand</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20634/equilibrium-in-macroeconomics-neo-classical-perspective" title="Equilibrium in macroeconomics (neo-classical perspective)">Equilibrium in macroeconomics (neo-classical perspective)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20439/equilibrium-in-macroeconomics-keynesian-perspective" title="Equilibrium in macroeconomics (keynesian perspective)">Equilibrium in macroeconomics (keynesian perspective)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21349/john-maynard-keynes" title="John Maynard Keynes">John Maynard Keynes</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20650/keynesian-v-free-market-debate-" title="Keynesian v free market debate ">Keynesian v free market debate </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21342/changes-in-the-long-run-aggregate-supply" title="Changes in the long run aggregate supply">Changes in the long run aggregate supply</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30055/unit-32-aggregate-demand-and-supply-review-sheet" title="Unit 3.2: Aggregate demand and supply review sheet">Unit 3.2: Aggregate demand and supply review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20610/unit-35-and-36-demand-management-fiscal-and-monetary-policy" title="Unit 3.5 and 3.6: Demand management - fiscal and monetary policy">Unit 3.5 and 3.6: Demand management - fiscal and monetary policy</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30058/government-budget" title="Government budget">Government budget</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21585/fiscal-policy-" title="Fiscal policy ">Fiscal policy </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21343/multiplier-hl-only" title="Multiplier (HL only)">Multiplier (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21795/monetary-policy-" title="Monetary policy ">Monetary policy </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30071/independent-central-banks" title="Independent central banks">Independent central banks</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30083/unit-35-and-36-review-sheet" title="Unit 3.5 and 3.6 review sheet">Unit 3.5 and 3.6 review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20615/unit-37-supply-side-policies" title="Unit 3.7: Supply side policies">Unit 3.7: Supply side policies</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20651/the-role-of-supply-side-policies" title="The role of supply side policies">The role of supply side policies</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20622/market-based-and-interventionist-supply-side-policies-" title="Market based and interventionist supply side policies ">Market based and interventionist supply side policies </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/39129/aggregate-demand-and-supply-crossword" title="Aggregate demand and supply crossword">Aggregate demand and supply crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30086/unit-37-review-sheet" title="Unit 3.7: Review sheet">Unit 3.7: Review sheet</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20755/unit-31-32-and-35-37-multiple-choice-quiz-" title="Unit 3.1-3.2 and 3.5-3.7: Multiple choice quiz ">Unit 3.1-3.2 and 3.5-3.7: Multiple choice quiz </a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/44522/unit-31-32-and-35-37-revision-quiz" title="Unit 3.1-3.2 and 3.5-3.7: Revision quiz">Unit 3.1-3.2 and 3.5-3.7: Revision quiz</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20686/unit-33-macroeconomic-objectives" title="Unit 3.3: Macroeconomic objectives">Unit 3.3: Macroeconomic objectives</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30118/unemployment" title="Unemployment">Unemployment</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21351/types-of-unemployment" title="Types of unemployment?">Types of unemployment?</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21593/equilibrium-unemployment-" title="Equilibrium unemployment ">Equilibrium unemployment </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21594/disequilibrium-unemployment" title="Disequilibrium unemployment">Disequilibrium unemployment</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30458/unemployment-review-sheet" title="Unemployment review sheet">Unemployment review sheet</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20713/inflation-" title="Inflation ">Inflation </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20712/measuring-inflation-hl-only" title="Measuring inflation (HL only)">Measuring inflation (HL only)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20685/costs-of-inflation-and-deflation" title="Costs of inflation and deflation">Costs of inflation and deflation</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30465/inflation-review-sheet" title="Inflation review sheet">Inflation review sheet</a></li></ul><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20716/unemployment-v-inflation-trade-off-hl-only" title="Unemployment v inflation trade off (HL only)">Unemployment v inflation trade off (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/39133/macroeconomic-objectives-crossword" title="Macroeconomic objectives crossword">Macroeconomic objectives crossword</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/44511/unit-33-macroeconomic-indicators-revision-quiz" title="Unit 3.3: Macroeconomic indicators revision quiz">Unit 3.3: Macroeconomic indicators revision quiz</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20741/unit-34-economics-of-inequality-and-poverty" title="Unit 3.4: Economics of inequality and poverty">Unit 3.4: Economics of inequality and poverty</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32398/inequality" title="Inequality">Inequality</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21356/the-role-of-spending-and-taxation-on-inequality-" title="The role of spending and taxation on inequality ">The role of spending and taxation on inequality </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21313/consequences-of-economic-growth" title="Consequences of economic growth">Consequences of economic growth</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30257/economic-growth-and-inequality-review-sheet" title="Economic growth and inequality review sheet">Economic growth and inequality review sheet</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20756/unit-33-34-multiple-choice-" title="Unit 3.3-3.4: Multiple choice ">Unit 3.3-3.4: Multiple choice </a></li></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21844/unit-4-global-economy" title="Unit 4: Global economy">Unit 4: Global economy</a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21367/unit-41-benefits-of-international-trade" title="Unit 4.1: Benefits of international trade">Unit 4.1: Benefits of international trade</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30529/benefits-of-international-trade" title="Benefits of international trade">Benefits of international trade</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20823/absolute-and-comparative-advantage-hl-only" title="Absolute and comparative advantage (HL only)">Absolute and comparative advantage (HL only)</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20845/unit-42-43-trade-protection" title="Unit 4.2-4.3: Trade protection">Unit 4.2-4.3: Trade protection</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32419/barriers-to-trade-calculations-are-hl-only" title="Barriers to trade (calculations are HL only)">Barriers to trade (calculations are HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21610/case-study-on-tata-steel" title="Case study on Tata Steel">Case study on Tata Steel</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/23455/the-defence-industry" title="The Defence industry">The Defence industry</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30610/unit-41-43-review-sheet" title="Unit 4.1-4.3: Review sheet">Unit 4.1-4.3: Review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20894/unit-44-economic-integration-" title="Unit 4.4: Economic integration ">Unit 4.4: Economic integration </a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30634/economic-integration-some-hl-tasks" title="Economic integration (some HL tasks)">Economic integration (some HL tasks)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20840/world-trade-organisation-wto" title="World trade organisation (WTO)">World trade organisation (WTO)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30635/unit-44-review-sheet" title="Unit 4.4: Review sheet">Unit 4.4: Review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20853/unit-45-exchange-rates" title="Unit 4.5: Exchange rates">Unit 4.5: Exchange rates</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30611/floating-exchange-rates" title="Floating exchange rates">Floating exchange rates</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/31824/fixed-managed-exchange-rate-systems-some-hl-tasks" title="Fixed / managed exchange rate systems (some HL tasks)">Fixed / managed exchange rate systems (some HL tasks)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21624/the-market-for-foreign-exchange" title="The market for foreign exchange">The market for foreign exchange</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30614/unit-45-review-sheet" title="Unit 4.5: Review sheet">Unit 4.5: Review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20859/unit-46-balance-of-payments" title="Unit 4.6: Balance of payments">Unit 4.6: Balance of payments</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30624/balance-of-payments-" title="Balance of payments ">Balance of payments </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21386/current-account-hl-only" title="Current account (HL only)">Current account (HL only)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20872/the-marshall-lerner-condition-j-curve-hl-only" title="The Marshall-Lerner condition / J curve (HL only)">The Marshall-Lerner condition / J curve (HL only)</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20899/units-41-46-multiple-choice-quiz-" title="Units 4.1-4.6: Multiple choice quiz ">Units 4.1-4.6: Multiple choice quiz </a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/42989/unit-41-46-multiple-choice-quiz-ii" title="Unit 4.1-4.6: Multiple choice quiz II">Unit 4.1-4.6: Multiple choice quiz II</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/39438/unit-41-46-international-trade-crossword" title="Unit 4.1-4.6: International trade crossword">Unit 4.1-4.6: International trade crossword</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32423/unit-47-sustainable-development-" title="Unit 4.7: Sustainable development ">Unit 4.7: Sustainable development </a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/26092/water-scarcity-activity" title="Water scarcity activity">Water scarcity activity</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32426/sustainable-development" title="Sustainable development">Sustainable development</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20928/unit-48-measuring-development-" title="Unit 4.8: Measuring development ">Unit 4.8: Measuring development </a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30686/measuring-development" title="Measuring development">Measuring development</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21627/economic-development-" title="Economic development ">Economic development </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30679/unit-47-48-review-sheet" title="Unit 4.7-4.8: Review sheet">Unit 4.7-4.8: Review sheet</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Unit 4.9: Barriers to development">Unit 4.9: Barriers to development</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30727/barriers-to-development-in-international-trade" title="Barriers to development in International trade">Barriers to development in International trade</a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32430/unit-410-economic-growth-andor-economic-development-strategies" title="Unit 4.10: Economic growth and/or economic development strategies">Unit 4.10: Economic growth and/or economic development strategies</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30687/the-role-of-domestic-factors" title="The role of domestic factors">The role of domestic factors</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30688/the-role-of-international-trade-and-development" title="The role of international trade and development">The role of international trade and development</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30689/the-role-of-foreign-direct-investment-fdi" title="The role of foreign direct investment (FDI)">The role of foreign direct investment (FDI)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/25240/the-role-of-foreign-aid-" title="The role of foreign aid ">The role of foreign aid </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30819/multilateral-development-assistance" title="Multilateral development assistance">Multilateral development assistance</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21632/the-role-of-international-debt" title="The role of international debt">The role of international debt</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/25242/the-balance-between-markets-and-intervention" title="The balance between markets and intervention">The balance between markets and intervention</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/30926/unit-49-410-review-sheet" title="Unit 4.9 - 4.10: Review sheet">Unit 4.9 - 4.10: Review sheet</a></li></ul></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21380/assessment" title="Assessment">Assessment</a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Internal assessment ">Internal assessment </a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/20608/how-to-write-your-ia-student-handout" title="How to write your IA? (student handout)">How to write your IA? (student handout)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/21428/how-to-interpret-the-assessment-criteria" title="How to interpret the assessment criteria?">How to interpret the assessment criteria?</a></li><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Grading practise ">Grading practise </a></li><ul class="level-3 "><li class=" parent" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Sample 3a">Sample 3a</a></li><ul class="level-4 "><li class="" style="padding-left: 56px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32083/sample-3b" title="Sample 3b">Sample 3b</a></li></ul></ul></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/32022/assessment-markbands" title="Assessment markbands">Assessment markbands</a></li></ul><li class=" parent std-toplevel" style="padding-left: 4px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/4332/exam-style-questions" title="Exam style questions">Exam style questions</a></li><ul class="level-1 "><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="std-disabled" href="#" title="Paper 1 style examination questions">Paper 1 style examination questions</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/40100/unit-211-212-questions" title="Unit 2.11-2.12 questions">Unit 2.11-2.12 questions</a></li></ul><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="https://www.student.thinkib.net/economics/page/45102/paper-1-guidance-on-essay-writing" title="Paper 1 guidance on essay writing">Paper 1 guidance on essay writing</a></li></ul></ul></nav> </div> </div> </div> </div><div style="margin-top: 20px;"><style type="text/css">
.studyib-link {
display: inline-block;
overflow: hidden;
font-size: 1.2em;
font-weight: normal;
margin: 10px;
transition: transform .2s; /* Animation */
}
#left-column .studyib-link {
font-size: 1em;
font-weight: normal;
margin: 5px;
transition: transform .2s; /* Animation */
}
#left-column .studyib-advert h2 {
font-size: 1.35em;
}
.studyib-link:hover {
transform: scale(1.2);
}
.studyib-link > img {
width: 2em; height: 2em;
margin: 0;
float: left;
}
.embed-responsive {
position: relative;
display: block;
height: 0;
padding: 0;
margin: 15px 0;
}
.embed-responsive-16by9 {
padding-bottom: 56.25%;
}
.embed-responsive iframe {
position: absolute;
top: 0;
left: 0;
bottom: 0;
height: 100%;
width: 100%;
border: 0;
}
.studyib-advert {
padding: 20px;
background: #E7EDF5;
border: solid 1px #EFF;
/* margin-left: 70px; */
}
.studyib-advert .heading {
display: flex;
flex-direction: row;
align-items: center;
}
.studyib-advert .heading img {
margin-right: 15px;
}
.studyib-advert .heading span {
color: #444
}
.studyib-advert h2,
.studyib-advert h3 {
margin: 0;
}
.studyib-advert .body {
margin-top: 20px;
}
</style>
<div class="studyib-advert">
<div class="heading">
<img src="https://assets.inthinking.net/thinkib/header-thinker-sib.svg" height="50" width="50" class="pull-left" alt="InThinking Revision Sites">
<div>
<h2>INTHINKING REVISION SITES</h2>
<span><em>Own your learning</em></span>
</div>
</div>
<div class="body">
<p>Why not also try our independent learning self-study & revision websites for students?</p>
<p>We currenly offer the following DP Sites: Biology, Chemistry, English A Lang & Lit, Maths A&A, Maths A&I, Physics, Spanish B</p>
<p>
<em>"The site is great for revising the basic understandings of each topic quickly.
Especially since you are able to test yourself at the end of each page and easily see where yo need to improve."</em>
</p>
<p><em>"It is life saving... I am passing IB because of this site!"</em></p>
<p>Basic (limited access) subscriptions are FREE. Check them out at:</p>
<div class="text-center">
<h3>
<a href="//studyib.net">www.StudyIB.net</a>
</h3>
</div>
</div>
</div>
</div></div><!-- /#left-column-->
<div id="main-column" class="span9"> <article id="unit-25-price-elasticity-of-demand" style="margin-top: 16px;">
<h1 class="section-title">Unit 2.5: Price elasticity of demand</h1>
<ul class="breadcrumb"><li><a title="Home" href="https://www.student.thinkib.net/economics"><i class="fa fa-home"></i></a><span class="divider">/</span></li><li><span class="gray">Units 1-2: Microeconomics</span><span class="divider">/</span></li><li><a title="Go to: Unit 2.5-2.6: Elasticity" href="https://www.student.thinkib.net/economics/page/20195/unit-25-26-elasticity">Unit 2.5-2.6: Elasticity</a><span class="divider">/</span></li><li><span class="active">Unit 2.5: Price elasticity of demand</span></li></ul>
<div class="row-fluid">
<section class="span12" id="main-content">
<h2><img alt="" height="245" src="/media/ib/economics/images/micro-economics-2/68.jpg" style="float: right;" title="http://www.yourarticlelibrary.com/" width="340" />Introduction</h2><p>Until now your students will have largely worked on the assumption that demand is linear and that the relationship between selling price and quantity demanded was the same or at least similar for most products - the exceptions being giffen and veblen goods. This section of the site focuses on how the relationship between the two variables changes, according to the elasticity of the good or service. This page concentrates on the first of the 4 types of elasticity in economics.</p><p>Price elasticity of demand can be described as the responsiveness of quantity demand to changes in the selling price of a good or service.</p><hr class="hidden" /><div class="greenBg"><h3>Enquiry question</h3>An understanding that the change in quantity demanded for different goods and services will respond differently to changes in price.</div><div class="blueBg"><h4><img alt="" src="/media/ib/economics/images/micro-economics-2/agriculture-arable-clouds-countryside-medium.jpg" style="width: 320px; height: 213px; float: left;" />Teacher notes</h4><p><em>Lesson time: 1 hour</em></p><p><strong>Lesson objectives:</strong></p><p>An understanding of the concept of price elasticity of demand, as the responsiveness of quantity demanded to a change in price, along a given demand curve</p><p>Learning how to calculate PED using the equation percentage change in quantity demanded / percentage change in price</p><p>An understanding that the PED value is treated as if it were positive, although its mathematical value is usually negative.</p><p>Explain, using diagrams and PED values, the concepts of price elastic demand, price inelastic demand, unit demand, perfectly elastic demand and perfectly inelastic demand.</p><p><strong>Teacher notes:</strong></p><section class="tib-hiddenbox"><p><span style="color:#FF0000;"><strong>1.</strong> <strong>Opening activity </strong>- involves two questions designed to introduce the concept of PED. The first involves correctly labelling three demand diagrams from the whiteboard. At this point your students will not be familiar with the concept of PED elasticity, but I find a number of IB students are able to make the connection between the shape of the demand curve for a basic necessity and one for a luxury item.</span></p><p><span style="color:#FF0000;"><strong>Activity 2</strong> - this starts with your classes writing down the most commonly purchased items. Some of these will be basic necessities, that they cannot do without while other products will be luxury items that they will forego when the price of those goods and services rises. They should be able to this list into a list of goods and services with different elasticities.</span></p><p><span style="color:#FF0000;"><strong>3.</strong> <strong>Processes</strong> -<strong> technical Vocabulary </strong>- your classes can learn the required vocabulary watching the video and studying the class handout which follows. This is along handout and together with the video, the first two activities should take around 25 minutes.<strong> </strong></span></p><p><strong><span style="color:#FF0000;">4. Reinforcement activity </span></strong><span style="color:#FF0000;">- attached to the class handout are 3 short questions on PED elasticity. <span style="color:#FF0000;"></span></span><span style="color:#FF0000;"></span></p><p><span style="color:#FF0000;"><strong>5. Link to the a</strong><strong>ssessment</strong> - this page includes a section on the assessment and where PED elasticity theory is likely to be found, which you can project onto the whiteboard for your classes to read and discuss.</span></p><p><span style="color:#FF0000;"><strong>6. Final reflection activity </strong>- the <span style="color:#FF0000;">elastic band activity is a fun activity that will allow your students to reflect on how different products respond differently to a change in price, represented by the stretching of each elastic band.</span></span></p></section></div><div class="pinkBg"><h4>Beginning activities</h4><p>1. Start by drawing three PED diagrams on the whiteboard, one PED inelastic, one elastic and the other PED unitary. have <img alt="" src="/media/ib/economics/images/general-2/tutut.jpg" style="width: 320px; height: 240px; float: left;" />your classes draw the same in their books and then label each with three different products e.g. cruise holidays, bread and second hand cars. Ask your students to think about which good is likely to see the largest change in quantity demanded following a change in price?</p><p>2. Next, have your classes write down a list of your 5-10 main expenditures and write down whether the good is a basic necessity for you or a luxury item? Suppose each of the items on your list rose in price by 10%. Now next to each assign one of the following labels to each item:</p><p>a. Following a rise in price of 10%, I would reduce my consumption of the product by more than 10%.</p><p>b. Following a rise in price of 10%, I would reduce my consumption of the product by less than 10%.</p><p>c. Following a rise in price of 10%, I would reduce my consumption of the product by about 10%.</p></div><div class="greenBg"><h5>Decoding your classes' lists</h5><section class="tib-hiddenbox"><p><img alt="" src="/media/ib/economics/images/micro-economics-2/dsc01767.jpg" style="width: 320px; height: 240px; float: right;" title="Dubai, UAE" /><span style="color:#FF0000;">Your classes should have compiled a list of 5-10 goods and services that you frequently purchase and next to each should have written a, b or c. It will be obvious that the (a) list includes price elastic goods e.t.c. So having completed this exercise discuss what made each of you write (a) by some items and (b) others? </span></p><p><span style="color:#FF0000;">Perhaps they selected items as (a) because you consider them to be of only marginal importance to your life - luxury items which are nice to have but you can live without? Perhaps you chose to reduce consumption of those items because you can easily switch your consumption to a similar product?</span></p><p><span style="color:#FF0000;">Now consider the items they have selected (b) for. Why was this? Perhaps these items are necessary items for you? Perhaps you chose not to reduce yor consumption of those items because there are no real alternatives for them?</span></p><p><span style="color:#FF0000;">This is the beginning of an understanding of PED elasticity.</span></p></section></div><div class="pinkBg"><h4>Video on price elasticity</h4><p>Watch the following short video before reading the handout that your teacher will give you.</p><p style="text-align: center;"><iframe allowfullscreen="" frameborder="0" height="360" src="//www.youtube.com/embed/tMp3yJywdJc" width="640"></iframe></p></div><div class="greenBg"><h4><strong><img alt="" src="/media/ib/economics/images/micro-economics/elastic-ped-curve-showing-change-in-price.jpg" style="width: 320px; height: 320px; float: right;" /><em>Key terms:</em></strong></h4><p><em><strong>Price elasticity of demand (PED)</strong></em>: The responsiveness of quantity demanded to changes in the selling price of a good or service. </p><p><strong>PED formulae</strong>: % change in quantity demanded / % change in selling price.</p><p><strong>PED elastic good</strong>: A good or service where a change in the price of the product leads to a greater than proportional change in quantity demanded. PED elastic goods have a PED greater than 1 (a top heavy fraction).</p><p><strong>PED inelastic good</strong>: A good or service where a change in the price of the product leads to a smaller than proportional change in quantity demanded. PED inelastic goods have a PED less than 1 (a bottom heavy fraction).</p><p><strong>PED unitary good</strong>: A good or service where a change in the price of the product leads to a proportional change in quantity demanded. Unitary elastic goods have a PED = 1.</p></div><div class="blueBg"><h4><img alt="" src="/media/ib/economics/images/micro-economics-2/picture1.png" style="width: 320px; height: 166px; float: right;" />How to remember the formulae for PED</h4><p>Students will normally find it easy to remember the variables in the formula but will get confused with which is the denominator and which, the numerator. The way to remember that you always place the % change in QD on top (numerator) and the % change in price on the bottom (denominator) of the fraction is to remember this simple phrase, you always Q before you P. </p></div><div class="greenBg"><h5><img alt="" src="/media/ib/economics/images/micro-economics/inelastic-demand-curve.jpg" style="width: 320px; height: 320px; float: left;" /> <strong>Examples of PED elasticity</strong></h5><p>1. A good sees a 10% rise in quantity demanded in response to a 5% fall in price. This would be expressed by the equation 10 / 5 = 2 (elastic PED)</p><p>2. Quantity demanded for a service rises by just 2% in response to a fall in the price of the service of 20%. This would be expressed by the equation 2 / 20 = 0.1 (PED inelastic)</p><p>3. When the price for a good rises from £ 5 to £ 6, quantity demanded for that product falls by 20%. This would be expressed as 20 / 20 = 1 (unitary elasticity).</p></div><div class="pinkBg"><h4><strong>Activities</strong></h4><p>1. The following three diagrams represent the market for three different products - cruise holidays, bread and second hand cars.</p><p><img alt="" src="/media/ib/economics/images/micro-economics/blank-supply-and-demand.jpg" style="width: 320px; height: 320px; float: left;" /> <strong><img alt="" src="/media/ib/economics/images/micro-economics/cheap-t-sgirts.jpg" style="width: 320px; float: right; height: 320px;" /></strong> </p><p><img alt="" src="/media/ib/economics/images/micro-economics/ped-elastic-before-tax.jpg" style="width: 320px; height: 320px;" /></p><hr class="hidden" /><p>Which diagram represents each good?</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">1. top left = <span style="color:#FF0000;">used cars, a PED unitary good</span></span></p><p><span style="color:#FF0000;">2. top right = <span style="color:#FF0000;">bread, a PED inelastic good</span></span></p><p><span style="color:#FF0000;">3. bottom = cruise holidays, a PED elastic good.</span></p></section><hr class="hidden" /></div><div class="pinkBg"><h4><strong>Activity 2</strong></h4><p>The next two diagrams illustrate a perfectly elastic demand curve, with a PED of infinity, as well as a good with a PED of 0.<span style="mso-spacerun:yes"> </span>Which is which? </p><img alt="" height="277" src="/media/ib/economics/images/micro-economics/perfectly-inelastic-supply-curve.jpg" width="277" /> <img alt="" src="/media/ib/economics/images/micro-economics/perfectly-elastic-demand.jpg" style="width: 280px; height: 280px;" /></div><section class="tib-hiddenbox"><p><span style="color:#FF0000;"><strong>A note about perfectly elastic / inelastic demand curves</strong></span></p><p><span style="color:#FF0000;">A product with perfectly inelastic demand has a PED of 0. This means that changes in price will have no impact on the quantity demanded for a good or service. This is illustrated on the diagram, where following a price change from (P1 to P2), there is no resulting change in quantity demanded.</span></p><p><span style="color:#FF0000;">By contrast, the final diagram illustrates a perfectly elastic demand curve, with a PED of infinity. At the market price quantity demand for these goods and services is infinite and firms can sell all of their produce, while at any other price demand falls to 0.</span></p></section><div class="pinkBg"><h4>Activity 3: Calculating PED elasticity</h4><p><em>1. Calculate the PED for each product, and then comment on your result.</em></p><p>(a) The price of a camera is valued at $150, and the quantity demanded at this price is 4 million units. During the end of year sales the shop reduces the price to $130 and as a result the quantity demanded rises to 6m.</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">50 / 13 = 3.85, thus making the camera a highly PED elastic product. The shop should receive a higher revenue from selling the cameras at the reduced price.</span></p></section><p>(b) The same shop sells batteries for their cameras for just $1, and the quantity demanded is 10 million. Following a price rise to $1.10 the quantity demanded falls to 9,500,000 units.</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">5 / 10 = 0.5, thus making the batteries for the camera PED inelastic. The shop should be advised against this price reduction as the new sales revenue generated will be lower than the initial revenue generated.</span></p></section><p>(c) The same shop also sells flash lights for $5, and the quantity demanded at this price is 2 million units. Following a reduction in the selling price to $4.50, quantity demanded rises to 2.2m</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">10 / 10 = 1, making this product PED unitary. Changing the selling price of this good will have no impact on the revenue collected. For example, the revenue at $5 = 5 x 2m = $10m while at the lower price the revenue is $4.50 x 2.2m = $9.99 (10m)</span></p></section><p><strong><img alt="" height="393" src="/media/ib/economics/images/micro-economics-2/orhan-bufe.jpg" style="float: right;" width="295" />Question 2</strong></p><p><em>Orhan Bufe</em> is a snack and sandwich shop, operating in the popular Blue Mosque area of the city, where there are many similar businesses operating. Its fastest selling products are hamburgers, cheese toasties and shish kebabs. These products currently sell for the following prices: hamburgers 10 TL, cheese toasties 8TL and the shish kebab, the Bufe’s signature dish sells for 12 TL. In 2018 the firm sold 10,000 hamburgers, 15,000 cheese toasties and 40,000 shish kebabs.</p><p>In an attempt to try and improve revenue the owner Orhan Uluturk decided to increase all prices by 10%. Market research gained from other similar shops in the area suggests that the price elasticity of demand for each product is:</p><p>Hamburger: (-) 1.5; Cheese toast : (-) 2.0; shish kebab: (-) 0.6</p><p><em>You have been asked to evaluate the planned price increases.</em></p><p>(a) Comment on the planned price changes.</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">Following a rise in the selling price of the three products of 10% the owner can expect to see a 3.4% rise in revenue for his shish kebabs, but a fall in revenue for his other products.</span></p></section><p>(b) Would a 10% price reduction have been better for some or all of the products?</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">A reduction in the selling price of both Hamburgers and Cheese toasts would benefit the Bufe, providing that increased sales for those products does not divert business away from his sales of shish kebab. </span></p></section><p>(c) What benefit (if any) would advertising bring to the firm?</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">Possibly, the area where the Bufe is located contains a number fo similar businesses and carefully targetted advertising, perhaps aimed at the cities tourist visitors might well prove to be profitable.</span></p></section><p><strong>Question 3</strong></p><p>A local delivery firm produces three types of home cooked food for delivery to homes in the local area. The firm completed market research, to discover the likely demand curves for each of the three meal packages. The results are shown below: (Monthly sales).</p><table border="1" cellpadding="0" cellspacing="0" height="388" width="490"><tbody><tr><td style="width:97px;height:26px;"><p align="center"><strong>Price</strong></p></td><td style="width:130px;height:26px;"><p align="center"><strong>Packet A (Qd)</strong></p></td><td style="width:130px;height:26px;"><p align="center"><strong>Packet B (Qd)</strong></p></td><td style="width:152px;height:26px;"><p align="center"><strong>Packet C (Qd)</strong></p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">13</p></td><td style="width:130px;height:24px;"><p align="center">800</p></td><td style="width:130px;height:24px;"><p align="center">1,700</p></td><td style="width:152px;height:24px;"><p align="center">1,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">12</p></td><td style="width:130px;height:24px;"><p align="center">840</p></td><td style="width:130px;height:24px;"><p align="center">1,980</p></td><td style="width:152px;height:24px;"><p align="center">2,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">11</p></td><td style="width:130px;height:24px;"><p align="center">880</p></td><td style="width:130px;height:24px;"><p align="center">2,520</p></td><td style="width:152px;height:24px;"><p align="center">3,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">10</p></td><td style="width:130px;height:24px;"><p align="center">920</p></td><td style="width:130px;height:24px;"><p align="center">2,800</p></td><td style="width:152px;height:24px;"><p align="center">4,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">9</p></td><td style="width:130px;height:24px;"><p align="center">960</p></td><td style="width:130px;height:24px;"><p align="center">3,080</p></td><td style="width:152px;height:24px;"><p align="center">5,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">8</p></td><td style="width:130px;height:24px;"><p align="center">1,000</p></td><td style="width:130px;height:24px;"><p align="center">3,360</p></td><td style="width:152px;height:24px;"><p align="center">6,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">7</p></td><td style="width:130px;height:24px;"><p align="center">1,040</p></td><td style="width:130px;height:24px;"><p align="center">3,640</p></td><td style="width:152px;height:24px;"><p align="center">7,000</p></td></tr><tr><td style="width:97px;height:24px;"><p align="center">6</p></td><td style="width:130px;height:24px;"><p align="center">1,080</p></td><td style="width:130px;height:24px;"><p align="center">3,920</p></td><td style="width:152px;height:24px;"><p align="center">8,000</p></td></tr></tbody></table><p>(a) Calculate PED for all three packages over the price range £10 to £11.</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">Package A is calculated by % change in QD (40/920) = 4.35 / % change in price (1/10) = 10 so 4.35 / 10 = 0.35 so PED = 4.35/10 = 0.44</span></p><p><span style="color:#FF0000;">Package B a PED of 1 i.e. (- 280 / 2800) / (1/10) = 1 </span></p><p><span style="color:#FF0000;">Package C has a PED of 2.5.</span></p></section><p>(b) What price must be charged for each package if the firm wishes to maximise their sales revenue?</p><section class="tib-hiddenbox"><p><span style="color:#FF0000;">A would be most profitable at a selling price of £13, generating £10,400 in sales.</span></p><p><span style="color:#FF0000;">B would be most profitable at a selling price of £10, generating £28,000 in sales. </span></p><p><span style="color:#FF0000;">C would be most profitable at a selling price of £7, generating £49,000 in sales.</span></p></section></div><p>Class notes available as a PDF at: <a href="/media/ib/economics/files/micro-economics/ped-elasticity.pdf" target="_blank" title="Student handouts"><img class="ico" src="https://assets.inthinking.net/thinkib/icons/student-handout.png" /> Elasticity</a> </p><div class="greenBg"><h4><strong>An important note about elasticity</strong></h4><p>Sometimes during your IB classes one of your students may describe a PED elastic good as a good or service which changes when price changes. Similarly, they may describe a PED inelastic good as one that doesn't change when price changes. This is of course false, demand for the vast majority of products changes in response to a change in price, both PED elastic and inelastic goods − perfectly inelastic goods are the exception. The difference is the degree to which demand for the good or service changes.</p></div><div class="greenBg"><div><h4><strong><img alt="" src="/media/ib/economics/images/micro-economics-2/cra_image.jpg" style="width: 300px; height: 300px; float: left;" title="image: https://elearning.adobe.com" />4. Link to the assessment</strong></h4><p>The concept of PED elasticity can appear across all sections of the assessment. In paper one candidates may be asked to explain the concept of PED in relation to two different products, for example, the luxury and used car markets, while in paper two PED elasticity is used to explain the relationship between the price of a nation's currency (exchange rate) and its current account (trading) balance. In the paper three students may be asked to calculate the PED of a given good or service, from a given set of numerical data and/or required to explain which factors determine the price elasticity of demand for a product.</p><p>The concept of PED elasticity can also be used as part of the internal assessment e.g. an article relating to the relative PED inelasticity of cigarettes or oil and may also form part of an extended essay in economics.</p></div></div><div class="pinkBg"><h4><strong>5. Reflection: Elastic band activity</strong></h4><p><img alt="" height="204" src="/media/ib/economics/images/micro-economics-2/670px-launch-a-rubber-band-step-2.jpg" style="float: right;" title="http://danieltolson.com" width="367" />This fun interactive activity is a good way of learning the concept of elasticity, by connecting<em> </em>the<em> responsiveness</em> of rubber bands to the responsiveness of quantity demand to a price change. Start by handing out a handful of different rubber bands, some that stretch more than the others. Using a pen or felt tip marker students will then be instructed to write the different name of a good or service on the elastic band, according to how PED elastic or inelastic the product is.</p><p>As the students are stretching the rubber bands, you will need to highlight that the rubber band that stretches more has a larger response to being pulled and is considered elastic. The rubber band that stretches less, i.e. is less responsive can be considered inelastic.</p><p>This activity should take no more than 10 minutes or so and afterwards some of your students can demonstrate what they have learnt, by stating the name(s) of the product as they stretch the elastic by the appropriate amount.</p></div><script>document.querySelectorAll('.tib-teacher-only').forEach(e => e.remove());</script>
</section>
</div>
</article>
</div><!-- /#main-column -->
</div>
</div><!-- /#content -->
</div>
</div>
<div id="footer" class="student-access">
<div class="wmap">
<div class="layout-wrapper">
<p>
© <script>document.write(new Date().getFullYear())</script> <em>InThinking</em>
|
<a target="_self" href="https://thinkib.net/subscribe/about-us">
About us
</a>
|
<a target="_self" href="https://thinkib.net/subscribe/legal">
Legal
</a>
|
<a target="_self" href="https://thinkib.net/subscribe/contact">
Contact
</a>
</p>
<p>
<a class="social" target="_blank" href="https://twitter.com/#!/inthinker">
<img src="https://assets.inthinking.net/social/twitter-square.svg"> Twitter
</a>
<a class="social" target="_blank" href="https://www.facebook.com/inthinking.net">
<img src="https://assets.inthinking.net/social/facebook-square.svg"> Facebook
</a>
<a class="social" target="_blank" href="https://www.linkedin.com/company/9s4we1">
<img src="https://assets.inthinking.net/social/linkedin-square.svg"> LinkedIn
</a>
</p>
</div>
</div>
</div>
<input id="tzoffset" type="hidden" value="-7200" /><div id="modal-session-expired" class="modal fade" tabindex="-1" role="dialog" data-backdrop="static" data-keyboard="false">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h3 style="margin-top: 0">Your session has expired</h3>
</div>
<div class="modal-body" style="padding: 10px;">
<p>You will have to reload and log in again.</p>
</div>
<div class="modal-footer">
<a id="session-expired" class="btn btn-danger pull-right" href="#">
<i class="fa fa-refresh"></i> Reload
</a>
</div>
</div>
</div>
</div>
<!-- Loading scripts at the end of the body means faster page loading -->
<script src="/js/jquery-1.10.2.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script type="text/javascript" src="js/jq-fancybox/jquery.fancybox.pack.js"></script>
<script src="/js/sidemenu/sidemenu.min.js?v=202011301145"></script><script src="/js/std-access/std-assignments-utils.min.js?v=202305221900"></script><script src="/js/std-access/std-comments-utils.min.js?v=202305221900"></script><script src="/js/std/std-task-utils.min.js?v=202305221900"></script><script src="/js/jq-mark.js/jquery.mark.min.js"></script><!-- MathJax only to render Math ML -->
<!--<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=MML_HTMLorMML"></script>
<style>
.math-tex {
font-size: 1.15em !important;
}
.math-tex span.ML__text {
/*font-family: inherit !important;*/
}
.ML__text + .ML__mathit {
margin-left: 0 !important;
}
.math-tex img, .math-tex + img, span img {
box-shadow: none;
margin: 0;
}
body {
--keycap-height: 39px;
--keycap-font-size: 16px;
--keycap-shift-font-size: 9px;
--keycap-small-font-size: 9px;
--keycap-extra-small-font-size: 9px;
--keyboard-toolbar-font-size: 16px;
--keycap-gap: 1px;
}
</style>
<script src="https://unpkg.com/mathlive/dist/mathlive.min.js" async defer></script>
<script src="https://unpkg.com/@cortex-js/compute-engine" async defer></script>
<script type="text/javascript" src="/js/cortexjs-utils.min.js?v=20230810"></script>
<script>
window.addEventListener('load',
() => MathLive.renderMathInDocument()
);
</script>
<script src="/js/header-circle.min.js?v=202305221900"></script><script type="text/javascript" src="/js/cookies.min.js"></script>
<script type="text/javascript">
// The cookies alert
if (! readCookie("displayCookieConsent") && ! readCookie("y") ) {
var cookieMSG = "We use cookies. By continuing to use this website you are giving consent to cookies being used.";
setTimeout(function() {
$.ajax({
cache: true,
url: "js/cookiechoices.js",
dataType: "script",
success: function () {
cookieChoices.showCookieConsentBar(cookieMSG, 'close', 'Read more', "economics/legal#cookies");
}
});
}, 2000);
}
</script><script>var sAJAX='/pages/activity/user-stats-page.php?t=fd6a5e8a06cfccf2&x=6259';var sData='0ebg+I>F/4F[IxZc+iZsoiQ1+jn2UjpCqiT2UM/fnMWMIxZQo|c8U-/QUIpehNncUNT6+In8hNn1LmY)oi+)qvT)+NuY/[g[2jT[qvZ)+Ncs/4F[2j>QqvTsLx/6/|Lco|Te+NSahNk[54WMUxbeqIn9LIb4qTZ80Ipc/4F[2vwOqt/6/Obc2iZQ2|ncIicY/4F[]4lj]-][ak==';var loopSecs = 30;var lsKey = '37b295c09c6d41ce85ec1dcf42bc6f4e';</script><script src="/js/user/user-stats-page.min.js?v=202102101800"></script><script>var sessionUpdateSecs = 600;</script><script type="text/javascript" src="/js/session-updater.js?v=20200831"></script>
<script type="text/javascript">
$(document).ready(function(){
function padLeft(str,max){return str.length<max?padLeft("0"+str,max):str}function padRight(str,max){return str.length<max?padRight(str+"0",max):str}$("body").on("click",'a[href="#"], a.fancybox-nav, a[data-toggle="tab"], a[data-toggle="dropdown"], a[data-toggle="collapse"], a[data-toggle="modal"]',(function(e){e.preventDefault()}));var topmenuOffset=0,topmenuHeight=0;function fixDiv(t,h){$(window).scrollTop()<topmenuOffset||$("#topmenu ul.level-1").is(":visible")?($("#topmenu").css({position:"",width:""}),$("#topmenu").removeClass("fixed-top"),$("body").css({"padding-top":"0"})):($("#topmenu").css({position:"fixed",top:"0",width:$("#topmenu").width()+"px"}),$("#topmenu").addClass("fixed-top"),$("body").css({"padding-top":topmenuHeight+"px"}))}function fixSearchNav(){var searchMenuTop=topmenuOffset+topmenuHeight,searchMenuH=$("#nav-menu-search").is(":visible")?$("#nav-menu-search").outerHeight():0;if($(window).scrollTop()>searchMenuTop-topmenuHeight){var borderBottomWidth=parseInt($("#topmenu").css("borderBottomWidth"))+1;$("#nav-menu-search").css({position:"fixed",top:topmenuHeight+borderBottomWidth+"px",left:"0",right:"0"}),$("#nav-menu-search").addClass("fixed-top"),$("body").css("padding-top",topmenuHeight+searchMenuH+"px")}else $("#nav-menu-search").css({position:""}),$("#nav-menu-search").removeClass("fixed-top"),$("body").css("padding-top","0")}$("#topmenu").length&&(topmenuOffset=$("#topmenu").offset().top,topmenuHeight=$("#topmenu").outerHeight(),fixDiv(),$(window).scroll((function(){fixDiv(),fixSearchNav()}))),$("a.toggle-menu-search").on("click",(function(e){e.preventDefault(),$("#nav-menu-search").slideToggle("fast",(function(){$(this).find('input[name="s"]').focus()}))}));var menuH=$("#topmenu").height(),itemH=$("#topmenu > nav > ul > li").height();function fancyScrollTo(id){$("html, body").animate({scrollTop:$("#"+id).offset().top-300},300)}function printSectionBlog(){var w=$(window).width()/2,h,windowSettings="height="+($(window).height()-100)+", width="+w+", left=0, top=0, resizable=no, ";windowSettings+="scrollbars=yes, toolbar=no, menubar=no, location=no, ",windowSettings+="directories=no, status=yes";var myWindow=window.open("","Page printer",windowSettings),containerHtml=["<html>","<head>","<title>Page printer</title>",'<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/style.min.css?v=20230303">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+"/css/style"+SITE_TAG+'.min.css?v=202104061357">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/snippets.min.css?v=202210181500">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/article.min.css?v=202212191730">',"</head>","<body>",$("section#main-content").html().replace(/<span\sclass="MJX_Assistive_MathML".*?<\/span>/g,""),"</body>","</html>"].join("");containerHtml=containerHtml.replace(/src="files\//gi,'src="'+window.location.origin+"/files/"),myWindow.document.write(containerHtml),myWindow.document.close(),myWindow.focus(),setTimeout((function(){$.when(myWindow.print()).then(myWindow.close())}),1e3)}function PopupPrint(target){window.print()}$("#topmenu > nav > ul > li").each((function(){if(menuH>itemH&&$(this).position().top<1){var i=itemH+1;$(this).find("ul:first").css("margin-top","-"+i+"px")}})),$("#topmenu > nav > ul > li").on("mouseenter mouseleave",(function(e){var submenu=$("ul:first",this),submenuW=submenu.width();$(this).offset().left+submenuW>$(window).width()&&(submenu.css("right","0"),submenu.find("ul").each((function(){if(!$(this).hasClass("fixed")){var l=$(this).width()+submenuW;$(this).css("margin-left","-"+l+"px"),$(this).addClass("fixed")}})))})),$("a.showhider").click((function(e){e.preventDefault();var box="#"+$(this).attr("rel"),show='<i class="fa fa-eye"></i>',hide='<i class="fa fa-eye-slash"></i>';$(box).slideToggle("fast"),$(this).html($(this).html()==show?hide:show),$(this).attr("title","Show"==$(this).attr("title")?"Hide":"Show")})),$("a.scroll-to").click((function(e){e.preventDefault();var n=$("#"+$(this).data("target")).offset().top-70;$("html, body").animate({scrollTop:n},300)})),$("a.print-section-blog").click((function(e){e.preventDefault(),printSectionBlog()})),$(".print-button").click((function(e){var target;e.preventDefault(),PopupPrint("#"+$(this).data("target-id"))})),$(".alert.alert-success").delay(6e3).hide("fast",fixDiv());var fancyParent=1==$("body").find($("#main-article")).length?"#main-article":"body",fancyOptions={loop:!1,openEffect:"elastic",closeEffect:"elastic",nextEffect:"fade",prevEffect:"fade",parent:fancyParent,helpers:{title:{type:"inside"}}};if($("ul.gallery").each((function(){var rel=$(this).find("li:first-child > a:first-child").attr("rel");$('ul.gallery a.fancy[rel="'+rel+'"]').fancybox(fancyOptions)})),$(".carousel.slide").each((function(){var rel="gallery-"+$(this).data("id");$('.carousel.slide a.fancy[rel="'+rel+'"]').fancybox(fancyOptions)})),$("img.pop").parent("a").each((function(){$(this).attr("title",$(this).children("img").attr("alt"))})),$("img.pop").parent("a").fancybox({loop:!1,helpers:{title:{type:"inside"}}}),!are_cookies_enabled()){var msg='<div class="alert alert-error"><i class="fa fa-warning"></i> Your browser does not accept cookies from this site. Please enable cookies to log in.</div><div class="alert alert-info"><i class="fa fa-question-circle"></i> Enabling cookies in <a target="_blank" style="margin: 0; padding: 0;" href="https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences">Firefox</a>, <a target="_blank" style="margin: 0; padding: 0;" href="https://support.google.com/accounts/answer/61416?hl=en">Chrome</a>, <a target="_blank" style="margin: 0; padding: 0;" href="http://windows.microsoft.com/en-us/windows-vista/block-or-allow-cookies">Explorer</a></div>';$("#modal-login .modal-header").append(msg)}if($(".panel-expandable > .panel-heading").click((function(e){e.preventDefault();var panel=$(this).closest(".panel-expandable"),expandables=panel.hasClass("panel-has-footer")?".panel-body, .panel-footer":".panel-body";panel.find(".panel-body").is(":visible")?(panel.find(expandables).slideUp("fast"),panel.find(".expander > .fa-minus").removeClass("fa-minus").addClass("fa-plus")):(panel.find(expandables).slideDown("fast"),panel.find(".expander > .fa-plus").removeClass("fa-plus").addClass("fa-minus"))})),$("#modal-find-out-more").css({width:.8*$("#container").width()+"px","margin-left":-.4*$("#container").width()+"px"}),$(".modal-xxl").length){var modalTopPos=Math.round(.07*$(window).height());$(window).width()>1200&&$(".modal-xxl").css({"max-width":$(window).width()>960?"960px":$(window).width()+"px",width:$(window).width()>960?"960px":$(window).width()+"px","margin-left":$(window).width()>960?"-480px":Math.round($(window).width()/2)}),$(".modal-xxl").css("top",modalTopPos+"px"),$(".modal-xxl").on("shown",(function(){var mHeaderH=$(this).find(".modal-header").outerHeight(),mBody=$(this).find(".modal-body"),mBodyH=mBody.outerHeight(),mFooterH=$(this).find(".modal-footer").outerHeight(),bottomOfTheModal=modalTopPos+mHeaderH+mBodyH+mFooterH;if(bottomOfTheModal<$(window).height())mBodyH+=$(window).height()-bottomOfTheModal-60,mBody.css("max-height",mBodyH+"px");else{$(window).scrollTop(0),modalTopPos=10,$(".modal-xxl").css("top",modalTopPos+"px"),bottomOfTheModal=modalTopPos+mHeaderH+mBodyH+mFooterH,availableScroll=bottomOfTheModal-$(window).height()+modalTopPos;var lastPos=-1;$(window).on("scroll",(function(){var s=$(window).scrollTop()>availableScroll?availableScroll:$(window).scrollTop();newPos=modalTopPos-s,newPos!=lastPos&&($(".modal-xxl").css("top",newPos+"px"),lastPos=newPos)}))}}))}function popupHelp(url,title,w,h){var dualScreenLeft=void 0!==window.screenLeft?window.screenLeft:screen.left,dualScreenTop=void 0!==window.screenTop?window.screenTop:screen.top,width,height,left=(window.innerWidth?window.innerWidth:document.documentElement.clientWidth?document.documentElement.clientWidth:screen.width)/2-w/2+dualScreenLeft,top=(window.innerHeight?window.innerHeight:document.documentElement.clientHeight?document.documentElement.clientHeight:screen.height)/2-h/2+dualScreenTop,newWindow=window.open(url,title,"menubar=no,location=no,resizable=0, width="+w+", height="+h+", top="+top+", left="+left);return window.focus&&(newWindow?newWindow.focus():$('<div class="alert alert-warning" style="margin-bottom: 0px;"><p class="help-block">Pop Up blocked. Please allow Pop Ups in your browser settings.</p></div>').insertBefore("body")),newWindow}if($(".open-student-access-help").click((function(e){e.preventDefault();var h=$(window).height()-20,w=$(window).width()<1280?$(window).width():1280;popupHelp(helpURL,"Student Access Help",w,h)})),$(".pop-up-help").click((function(e){e.preventDefault();var url=$(this).attr("href"),title=$(this).data("title"),h=$(window).height()-20,w;popupHelp(url,title,$(window).width()<1280?$(window).width():1280,h)})),$("section.tib-hiddenbox").length){var count=0;$($("section.tib-hiddenbox").get().reverse()).each((function(){var box=$(this),revealButton;$("<a />").attr("class","btn showhider").attr("rel","hiddenBoxContent"+count).attr("style","margin-bottom: 0;").html('<i class="fa fa-eye"></i>').insertBefore(box);var newContainer=$("<div />").attr("class","hidden-content").attr("id","hiddenBoxContent"+count).html(box.html());newContainer.hide(),newContainer.insertBefore(box),box.remove(),count++})),$("a.showhider").on("click",(function(e){var container=$("#"+$(this).attr("rel"));container.is(":hidden")?(container.fadeIn("fast"),$(this).html('<i class="fa fa-eye-slash"></i>')):(container.fadeOut("fast"),$(this).html('<i class="fa fa-eye"></i>'))}))}
$('img.ico[src="https://assets.inthinking.net/thinkib/icons/comments.png"]').each(function(){var comment=$(this).attr("title");$(this).removeAttr("title");$(this).wrap('<a class="tib-popover" href="#" data-content="'+comment+'" data-togle="popover" data-placement="top" />')});$('img.ico[src="https://assets.inthinking.net/thinkib/icons/comments.png"]').each(function(){var comment=$(this).attr("title");$(this).removeAttr("title");$(this).wrap('<a class="tib-popover" href="#" data-content="'+comment+'" data-togle="popover" data-placement="top" />')});$(".tib-popover").popover({html:true,trigger:"hover",delay:{show:300,hide:300},placement:function(context,source){var position=$(source).position();if(position.top>200){return"top"}if(position.left<515){return"right"}if(position.top<200){return"bottom"}if(position.left>515){return"left"}return"top"}}).click(function(e){e.preventDefault()});var carouselTime=6500;$("div.carousel.slide").carousel({interval:carouselTime});$(".tib-indicators > img").click(function(){var index=$(this).index();var container=$(this).closest(".carousel.slide");container.carousel(index)});setShowResultsListeners($("#container"));addMarksThreads($("#modal-std-write"));
$('a.btn.showhider').click(function(e) {
var showHiderId = $( this ).attr('rel');
if( $('#'+showHiderId).find('iframe').length > 0 ) {
$('#'+showHiderId+' iframe').each(function() {
if ( $(this).attr('src').indexOf('.pdf') > 0 ) {
this.contentWindow.location.reload(true);
}
});
}
});
});
</script>
</body>
</html>