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<title>DP Economics: Unit 2.5(2): Income elasticity of demand (YED) </title>
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style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../35118/unit-2111-market-power-theory-of-production-and-costs-hl.html" 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="../35125/unit-2112-market-power-perfect-competitionhl.html" 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="../35147/unit-2113-market-power-monopolyhl.html" 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="../35151/unit-2114-market-power-monopolistic-competitionhl.html" 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="../35153/unit-2115-market-power-oligopolyhl.html" 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="../41603/economics-real-world-examples-and-extension-material-.html" 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="../43378/opportunity-cost-and-production-possibility-curves.html" 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="../42559/demand-theory.html" title="Demand theory">Demand theory</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../41886/the-price-mechanism.html" 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="../43188/market-demand-and-supply.html" 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="../41705/demerit-goods.html" title="Demerit goods">Demerit goods</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../42275/market-failure-and-climate-change.html" 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="../42925/market-power.html" title="Market power">Market power</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../42099/applying-game-theory.html" 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="../34407/chapter-3-macroeconomics.html" 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="../34355/unit-311-measuring-the-level-of-economic-activity.html" 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="../34432/unit-312-measuring-economic-development.html" 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="../34485/unit-321-variations-in-economic-activity-aggregate-demand-ad-.html" 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="../34487/unit-322-variations-in-economic-activity-aggregate-supplyas.html" 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="../34758/unit-331-macroeconomic-objectives-economic-growth.html" 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="../34771/unit-332-macroeconomic-objectives-unemployment-.html" 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="../34778/unit-333-macroeconomic-objectives-inflation-and-deflation--1.html" 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="../34925/unit-341-economics-of-inequality-and-poverty-1.html" 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="../34946/unit-342-policies-to-improve-equality-equity-and-poverty.html" 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="../34993/unit-35-government-management-of-the-economy-monetary-policy-1.html" 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="../34962/unit-36-government-management-of-the-economy-fiscal-policy-1.html" 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="../35017/unit-371-market-based-supply-side-policies--1.html" 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="../35018/unit-372-interventionist-supply-side-policies-.html" 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="../45803/economics-real-world-examples-and-extension-material--1.html" 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="../42639/measuring-economic-well-being-1.html" 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="../43044/inflation.html" title="Inflation">Inflation</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../42350/inequality.html" title="Inequality">Inequality</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../41639/inequity-1.html" 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="../35414/chapter-4-the-global-economy.html" 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="../35346/unit-41-benefits-of-international-trade-1.html" 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="../35348/unit-4243-trade-protectionism-1.html" 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="../35407/unit-44-economic-integration-.html" 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="../35409/unit-45-exchange-rates-1.html" 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="../35413/unit-46-balance-of-payments--1.html" 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="../35675/unit-47-sustainable-development.html" 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="../35685/unit-48-measuring-development--1.html" 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="../35687/unit-49-barriers-to-economic-development-1.html" 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="../35702/unit-410-economic-growth-and-economic-development-strategies.html" 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="../45804/economics-real-world-examples-and-extension-material-.html" 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="../41927/foreign-currency-1.html" title="Foreign currency">Foreign currency</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../43532/exchange-rates-1.html" title="Exchange rates">Exchange rates</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../43804/balance-of-payments.html" 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="../41796/economic-development-1.html" title="Economic development">Economic development</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="../20132/units-1-2-microeconomics.html" title="Units 1-2: Microeconomics">Units 1-2: Microeconomics</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="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="../20091/introductory-activity-1.html" 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="../20093/unit-11-scarcity-choice-and-opportunity-cost.html" 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="../21647/factors-of-production-1.html" 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="../20114/economic-systems.html" 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="../20134/public-and-private-sectors-1.html" 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="../28055/unit-12-economics-as-a-social-science-1.html" 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="../29921/circular-flow-of-national-income.html" 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="../29829/unit-1-review-terms-1.html" 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="../41600/introduction-to-economics-crossword-1.html" 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="../4331/unit-1-multiple-choice-quiz.html" 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="../20177/unit-21-23-competitive-markets-demand-and-supply-1.html" 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="../28517/unit-21-demand-1.html" 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="../22349/determinants-of-demand-1.html" 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="../29949/unit-22-supply-.html" 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="../20184/changes-to-supply-and-demand-.html" 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="../21992/practise-exercises-1.html" title="Practise exercises">Practise exercises</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../26112/gold-exchange-game-demand-and-supply-1.html" 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="../20194/unit-23-competitive-market-equilibrium-1.html" 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="../20144/producer-and-consumer-surplus-1.html" 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="../22351/veblen-goods-and-super-luxury-goods-1.html" 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="../25677/are-cryptocurrencies-the-new-tulipmania.html" 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="../20472/unit-21-23-multiple-choice-quiz.html" 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="../20113/unit-24-consumer-and-producer-behaviour-hl-only-1.html" 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="../36073/behavioural-economics-consumer-biases-nudge-theory-hl-only-1.html" 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="../20378/business-objectives-hl-only.html" 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="../28741/unit-21-24-review-terms--1.html" title="Unit 2.1-2.4: Review terms ">Unit 2.1-2.4: Review terms </a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a class="" href="../20195/unit-25-26-elasticity-1.html" title="Unit 2.5-2.6: Elasticity">Unit 2.5-2.6: Elasticity</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../28713/unit-25-price-elasticity-of-demand-1.html" title="Unit 2.5: Price elasticity of demand">Unit 2.5: Price elasticity of demand</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../21545/determinants-of-price-elasticity-.html" 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="../21532/ped-elasticity-and-sales-revenue.html" 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="../21259/unit-25-income-elasticity-of-demand-yed.html" 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="../21200/unit-26-price-elasticity-of-supply.html" 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="../20207/perfectly-elastic-inelastic-supply-curves.html" 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="../20230/a-mathematical-note-about-elasticity-.html" 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="../39037/demand-and-supply-crossword.html" 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="../29021/unit-25-26-review-terms-1.html" 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="../20474/unit-25-26-multiple-choice-quiz--1.html" 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="../44474/unit-21-25-competitive-markets-quiz-1.html" 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="../20243/unit-27-the-role-of-government-in-microeconomics--1.html" 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="../26590/indirect-taxation.html" 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="../20246/ped-and-the-burden-of-tax-hl-only-.html" 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="../20277/government-subsidies--1.html" title="Government subsidies ">Government subsidies </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../29117/unit-27-indirect-tax-and-subsidy-review-terms-1.html" 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="../20287/price-controls-maximum-price--1.html" 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="../20288/minimum-price-.html" title="Minimum price ">Minimum price </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21540/minimum-wage-.html" title="Minimum wage ">Minimum wage </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../38849/labour-market-crossword-1.html" 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="../29260/unit-27-price-controls-review-terms-1.html" 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="../20303/unit-28-210-market-failure--1.html" 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="../21543/unit-28-merit-goods--1.html" 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="../23123/unit-28-demerit-goods-negative-externalities-1.html" 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="../38850/market-failure-crossword-1.html" 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="../29262/unit-29-economics-of-the-environment-and-public-goods--1.html" 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="../20332/unit-210-asymmetric-information-hl-only-1.html" 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="../29828/unit-28-210-market-failure-review-sheet.html" 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="../29827/unit-28-210-market-failure-review-terms.html" 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="../20479/unit-27-210-multiple-choice-quiz--1.html" 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="../44501/unit-27-210-government-failure-revision-quiz-1.html" 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="../20330/unit-211-market-power-hl-only-1.html" 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="../29835/assessment-map.html" title="Assessment map">Assessment map</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21528/production-hl-only.html" 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="../29978/revenue-theory-hl-only.html" 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="../20357/costs-of-production-hl-only.html" 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="../21286/economies-and-diseconomies-of-scale-hl-only.html" 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="../22494/long-run-average-cost-curves-hl-only.html" 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="../29838/breakeven-hl-only.html" 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="../20340/economic-profit-hl-only.html" 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="../39082/market-power-crossword.html" 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="../22495/revision-exercise-on-cost-and-revenue-hl-only.html" 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="../29845/unit-211-costs-revenue-and-profit-review-sheet-hl-only.html" 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="../44484/unit-211-multiple-choice-quiz-sl-units-1.html" 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="../29846/market-structures-hl-only-1.html" 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="../29981/perfect-competition-hl-only-1.html" 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="../24486/profit-in-perfect-competition-hl-only-1.html" 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="../21302/efficiency-in-perfect-competition-hl-only.html" 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="../20430/monopoly-hl-only-1.html" 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="../24529/profit-and-revenue-maximisation-in-monopoly-hl-only-1.html" 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="../21306/a-comparison-of-monopoly-and-perfect-competition-hl-only-1.html" 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="../20435/monopolistic-competition-hl-only-1.html" 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="../20436/oligopoly-hl-only-1.html" 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="../22310/game-theory-hl-only-1.html" 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="../29918/unit-211-market-structures-review-sheet-hl-only-1.html" 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="../32337/unit-211-diagram-revision-.html" 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="../20480/unit-211-multiple-choice-quiz-hl-only-1.html" 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="../32425/unit-212-the-markets-inability-to-achieve-equity-hl-only-1.html" 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="../21842/unit-3-macroeconomics-.html" 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="../3942/unit-31-measuring-economic-activity-and-illustrating-its-variati-1.html" 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="../20558/calculating-national-income-1.html" 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="../21297/gdp-gni-as-a-measure-of-living-standards.html" 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="../20567/national-income-statistics-1.html" 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="../21580/the-business-cycle-1.html" 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="../29931/unit-31-economic-activity-review-sheet-1.html" 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="../20592/unit-32-variations-in-economic-activityaggregate-demand-and-aggr-1.html" 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="../29933/aggregate-demand-and-supply.html" 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="../21582/components-of-aggregate-demand-1.html" 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="../20634/equilibrium-in-macroeconomics-neo-classical-perspective-1.html" 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="../20439/equilibrium-in-macroeconomics-keynesian-perspective-1.html" 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="../21349/john-maynard-keynes-1.html" 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="../20650/keynesian-v-free-market-debate--1.html" 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="../21342/changes-in-the-long-run-aggregate-supply-1.html" 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="../30055/unit-32-aggregate-demand-and-supply-review-sheet-1.html" 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="../20610/unit-35-and-36-demand-management-fiscal-and-monetary-policy-1.html" 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="../30058/government-budget.html" title="Government budget">Government budget</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21585/fiscal-policy--1.html" title="Fiscal policy ">Fiscal policy </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21343/multiplier-hl-only.html" 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="../21795/monetary-policy--1.html" title="Monetary policy ">Monetary policy </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../30071/independent-central-banks-1.html" 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="../30083/unit-35-and-36-review-sheet.html" 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="../20615/unit-37-supply-side-policies-1.html" 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="../20651/the-role-of-supply-side-policies-1.html" 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="../20622/market-based-and-interventionist-supply-side-policies--1.html" 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="../39129/aggregate-demand-and-supply-crossword-1.html" 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="../30086/unit-37-review-sheet-1.html" 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="../20755/unit-31-32-and-35-37-multiple-choice-quiz--1.html" 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="../44522/unit-31-32-and-35-37-revision-quiz-1.html" 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="../20686/unit-33-macroeconomic-objectives.html" 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="../30118/unemployment.html" 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="../21351/types-of-unemployment.html" 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="../21593/equilibrium-unemployment-.html" title="Equilibrium unemployment ">Equilibrium unemployment </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../21594/disequilibrium-unemployment-1.html" title="Disequilibrium unemployment">Disequilibrium unemployment</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a class="" href="../30458/unemployment-review-sheet-1.html" 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="../20713/inflation--1.html" 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="../20712/measuring-inflation-hl-only-1.html" 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="../20685/costs-of-inflation-and-deflation-1.html" 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="../30465/inflation-review-sheet.html" 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="../20716/unemployment-v-inflation-trade-off-hl-only-1.html" 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="../39133/macroeconomic-objectives-crossword-1.html" 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="../44511/unit-33-macroeconomic-indicators-revision-quiz-1.html" 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="../20741/unit-34-economics-of-inequality-and-poverty-1.html" 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="../32398/inequality-1.html" title="Inequality">Inequality</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21356/the-role-of-spending-and-taxation-on-inequality--1.html" 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="../21313/consequences-of-economic-growth-1.html" 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="../30257/economic-growth-and-inequality-review-sheet-1.html" 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="../20756/unit-33-34-multiple-choice-.html" 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="../21844/unit-4-global-economy.html" 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="../21367/unit-41-benefits-of-international-trade.html" 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="../30529/benefits-of-international-trade.html" 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="../20823/absolute-and-comparative-advantage-hl-only-1.html" 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="../20845/unit-42-43-trade-protection-1.html" 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="../32419/barriers-to-trade-calculations-are-hl-only-1.html" 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="../21610/case-study-on-tata-steel-1.html" 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="../23455/the-defence-industry-1.html" 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="../30610/unit-41-43-review-sheet-1.html" 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="../20894/unit-44-economic-integration--1.html" 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="../30634/economic-integration-some-hl-tasks-1.html" 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="../20840/world-trade-organisation-wto-1.html" 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="../30635/unit-44-review-sheet-1.html" 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="../20853/unit-45-exchange-rates-1.html" 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="../30611/floating-exchange-rates-1.html" 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="../31824/fixed-managed-exchange-rate-systems-some-hl-tasks-1.html" 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="../21624/the-market-for-foreign-exchange-1.html" 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="../30614/unit-45-review-sheet-1.html" 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="../20859/unit-46-balance-of-payments-1.html" 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="../30624/balance-of-payments--1.html" 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="../21386/current-account-hl-only-1.html" 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="../20872/the-marshall-lerner-condition-j-curve-hl-only-1.html" 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="../20899/units-41-46-multiple-choice-quiz--1.html" 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="../42989/unit-41-46-multiple-choice-quiz-ii-1.html" 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="../39438/unit-41-46-international-trade-crossword-1.html" 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="../32423/unit-47-sustainable-development--1.html" 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="../26092/water-scarcity-activity-1.html" 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="../32426/sustainable-development.html" 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="../20928/unit-48-measuring-development--1.html" 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="../30686/measuring-development-1.html" title="Measuring development">Measuring development</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../21627/economic-development--1.html" title="Economic development ">Economic development </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a class="" href="../30679/unit-47-48-review-sheet.html" 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="../30727/barriers-to-development-in-international-trade-1.html" 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="../32430/unit-410-economic-growth-andor-economic-development-strategies-1.html" 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="../30687/the-role-of-domestic-factors-1.html" 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="../30688/the-role-of-international-trade-and-development-1.html" 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="../30689/the-role-of-foreign-direct-investment-fdi-1.html" 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="../25240/the-role-of-foreign-aid--1.html" 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="../30819/multilateral-development-assistance-1.html" 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="../21632/the-role-of-international-debt-1.html" 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="../25242/the-balance-between-markets-and-intervention-1.html" 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="../30926/unit-49-410-review-sheet.html" 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="../21380/assessment.html" 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="../20608/how-to-write-your-ia-student-handout.html" 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="../21428/how-to-interpret-the-assessment-criteria-1.html" 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="../32083/sample-3b-1.html" 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="../32022/assessment-markbands-1.html" 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="../4332/exam-style-questions.html" 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="../40100/unit-211-212-questions.html" 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="../45102/paper-1-guidance-on-essay-writing-1.html" 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">
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<div id="main-column" class="span9"> <article id="unit-252-income-elasticity-of-demand-yed-" style="margin-top: 16px;">
<h1 class="section-title">Unit 2.5(2): Income elasticity of demand (YED) </h1>
<ul class="breadcrumb"><li><a title="Home" href="../../../economics.html"><i class="fa fa-home"></i></a><span class="divider">/</span></li><li><span class="gray">Textbook</span><span class="divider">/</span></li><li><span class="gray">Chapter 2: Microeconomics</span><span class="divider">/</span></li><li><span class="active">Unit 2.5(2): Income elasticity of demand (YED) </span></li></ul>
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<div class="intro-card"><div class="bg-cover" style="background-image: url("/media/ib/economics/images/textbook/ped/picture-25(1).png");"><a href="../../../index-2.htm" target="_blank" title="Student handouts"><img class="ico" src="../../../thinkib/icons/student-handout.png"> Right-click & edit link</a></div><img src="../../../ib/economics/images/textbook/ped/picture-25(1).png" style="display: none"><div class="content"><p class="text">Income elasticity of demand (YED) measures the relationship between changes in household incomes and changes in the quantity demand for different goods and services. YED is useful to different stakeholders in the economy because it can be used to explain how the demand for different goods and services changes as household incomes change.</p></div></div><div class="dottedBox"><div class="panel panel-has-footer" style="box-shadow: rgba(17, 34, 51, 0.3) 0px 10px 30px -15px; border-color: rgb(39, 45, 105);"><div class="panel-heading" style="background-color: rgb(39, 45, 105);"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><h4><strong>What you should know by the end of this chapter:</strong></h4></div></div><strong><img alt="" src="../../../ib/economics/images/textbook/ped/luxury-inferior.jpg" style="float: right; width: 327px; height: 215px;" title="https://www.thegrocer.co.uk/the-grocer-33/lidl-caps-a-good-week-by-offering-cheapest-grocer-33-shop/598616.article"></strong></div><ul><li>Definition of income elasticity of demand (YED)</li><li>Calculation of YED</li><li>Measuring the YED of normal, necessity, luxury and inferior goods</li><li>Importance of YED for firms (HL)</li><li>Use of YED explaining changes in the sectoral structure of the economy. (HL)</li></ul></div><div class="greyBg"><h3>Revision material</h3><p><img alt="" src="../../../ib/economics/images/textbook/revision-material/logo.jpg" style="width: 200px; height: 95px; float: left;">The link to the attached pdf is revision material from <strong>Unit 2.5(2): Income elasticity of demand (YED). </strong>The revision material can be downloaded as a student handout.</p><p><a href="../../../media/ib/economics/images/textbook/ped/new-elasticity/yed-revision-notes.pdf.html" target="_blank" title="Revision"><img class="ico" src="../../../thinkib/icons/revision.png"> Revision notes</a> </p></div><div class="blueBg"><h3><strong>Definition and measurement of income elasticity of demand</strong></h3><p>Incom<img alt="" height="234" src="../../../ib/economics/images/textbook/ped/picture-21.png" style="float: left;" width="351">e elasticity of demand is the responsiveness of quantity demanded to a change in household income. It is measured by the equation:</p><p>% change in Qd / % change income = YED</p><p>For example, if a 5 per cent increase in household income leads to a 7 per cent increase in quantity demanded for computer game consoles such as the Sony PlayStation the YED would be:</p><p>+7% QD / +5% Y = +1.4</p><hr class="hidden"><p>This means that for every 1 per cent increase in household income the quantity demanded of games consoles will increase by 1.4 per cent. This relationship is shown in diagram 2.24 where a rise in income causes the demand curve for game consoles to increase and shift to the right.</p><h3><strong>Interpretation of income elasticity of demand</strong></h3><h4><strong>Normal goods</strong></h4><p>Normal goods have a positive YED. Quantity demanded rises as income rises, and quantity demand falls as income falls. The +1.4 YED value for computer games consoles shows they are normal goods. Most goods are normal because as incomes rise people will demand more of most goods, but the rate of increase will be different for different types of goods.</p><h4><strong>Necessity goods </strong></h4><p>Necessity goods are normal goods that have a YED between 0 and 1. For example, if there is a 5 per cent rise in household incomes and the quantity demanded for electricity increases by 1 per cent.</p><p>+1% QD / + 5% Y = +0.2 YED</p><p>The demand for necessity goods such as basic food, energy and public transport will have YED values between 0 and 1.</p><h4><strong>Luxury goods</strong></h4><p>Luxury goods are normal goods and the demand for them has a YED of greater than 1. This means a rise in income will lead to a greater than proportionate increase in quantity demanded, and a fall in income will lead to a greater than proportionate fall in quantity demanded. If, for example, the quantity demanded for 5-star hotels increases by 8 per cent following a 6 per cent rise in incomes then the YED would be:</p><p>+8% QD / +6%P = +1.33</p><p>This YED value means the quantity demanded for 5-star hotels increases by a more than proportionate amount relative to the change in income. Luxury goods such as prestige cars, designer clothing and exclusive restaurants will have YED values of greater than 1.</p></div><div class="pinkBg"><div class="panel panel-has-footer" style="box-shadow: rgba(17, 34, 51, 0.3) 0px 10px 30px -15px; border-color: rgb(39, 45, 105);"><div class="panel-heading" style="background-color: rgb(39, 45, 105);"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><h4><strong>Inquiry based case example - The premium market for chocolate </strong></h4></div></div><strong><img alt="" src="../../../ib/economics/images/textbook/ped/picture-22.png" style="float: right; width: 245px; height: 229px;" title="https://us.greenandblacks.com/"></strong></div><p>The Global Premium Chocolate Market is forecasted to reach US$33.15 billion by 2024, growing at an annual rate of 9.93% during the forecast period (2019-2024). Key trends in the market are growing demand for organic, vegan, sugar-free, and gluten-free chocolate. The demand for limited edition chocolate plays an important role in the market. Numerous companies are launching premium and luxury chocolate varieties during occasions such as Christmas and Easter. In areas of the world with rising incomes, the demand for premium chocolate which has a YED of more than 1 may lead to significant revenue growth for companies in the sector. On the other hand, a recession may be very damaging for producers in the premium chocolate sector.</p><hr class="hidden"><h5><a href="../../../media/ib/economics/images/textbook/ped/new-elasticity/chocolate-question.pdf.html" target="_blank" title="Questions"><img class="ico" src="../../../thinkib/icons/question.png"> Worksheet questions</a></h5><h5>Questions</h5><p><strong>a. Define the term income elasticity of demand. [2]</strong></p><section class="tib-hiddenbox"><p>Income elasticity of demand is the responsiveness of quantity demanded to a change in household income. It is measured by the equation: % change in Qd / % change income = YED</p></section><p><strong>b. Annual household incomes in a country have increased by 3% and the YED for a luxury chocolate brand is 1.3 and 0.4 for a more basic brand it sells. Calculate the increase in quantity demanded for the: </strong></p><p><strong>(i) Luxury brand [1]</strong></p><p><strong>(ii) Basic brand [1]</strong></p><section class="tib-hiddenbox"><p>Luxury brand: 3% x 1.3 = 3.9%</p><p>Basic brand: 3% x 0.4 = 1.2%</p></section><p><strong>c. Using a diagram, explain what might happen to demand for luxury brand goods in a recession. [4]</strong></p><section class="tib-hiddenbox"><p><img alt="" height="283" src="../../../ib/economics/images/textbook/inquiry-case-example-questions/fall-in-demand-for-chocolate.jpg" style="float: right;" width="368">In a recession, household incomes may fall and this could lead to a fall in demand for a luxury good with a relatively high YED value of 1.3.</p></section><h5>Investigation</h5><p><strong>Go to your local supermarket and research another brand of good in the premium sector of the food product market.</strong></p></div><div class="blueBg"><h4><strong>Inferior goods </strong></h4><p>The demand for inferior goods will have a negative YED because the quantity demanded for inferior goods falls as household incomes rise and rise as incomes fall.</p><hr class="hidden"><p>For example, the quantity demanded of dried packet soup falls by 3 per cent following a 4 per cent rise in household income. This is calculated as: -3% QD / +4% Y = -0.75.</p><p>Inferior goods such as tinned food, bus travel and synthetic clothing will often have negative YEDs. Although this will vary between countries.</p><p><img alt="" height="169" src="../../../ib/economics/images/textbook/ped/yed.jpg" style="float: left;" width="473">The chart summarises the YEDs of inferior, necessity and luxury goods.</p></div><div class="pinkBg"><div class="panel panel-has-footer" style="box-shadow: rgba(17, 34, 51, 0.3) 0px 10px 30px -15px; border-color: rgb(39, 45, 105);"><div class="panel-heading" style="background-color: rgb(39, 45, 105);"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><h4><strong>Inquiry based case example - Doing your washing in the Launderette</strong></h4></div></div></div><p><img alt="" height="203" src="../../../ib/economics/images/textbook/ped/picture-25.png" style="float: right;" title="https://www.flickr.com/photos/39280005@N02/8510306973" width="340">In the 1960s there was a launderette on every high street in the UK, and in the mid-1980s the number peaked at 12,500. But rising household incomes and the falling price of washing machines led to a continuous decline in the launderette market. The Office for National Statistics in the UK has said the number of Launderette’s in the UK has fallen by over 80 per cent in the last 30 years. In 1972 66 per cent of households had a washing machine, but that had risen to 97 per cent by 2019. The data on the Launderette market shows they are inferior goods and washing machines are normal goods.</p><hr class="hidden"><h5><a href="../../../media/ib/economics/images/textbook/ped/new-elasticity/launderette-servicesq.pdf.html" target="_blank" title="Questions"><img class="ico" src="../../../thinkib/icons/question.png"> Worksheet questions</a></h5><h5>Questions</h5><p><strong>a. The value of the income elasticity of demand for launderettes in the UK is currently measured at -1.9 and the quantity demanded for launderettes has fallen by 2.7%. Calculate the change in household income in the UK. [2]</strong></p><section class="tib-hiddenbox"><p>-2.7% / -1.9 = 1.42%</p></section><hr class="hidden"><p><strong>b. Using a diagram, explain one reason why the demand for launderette services has fallen as household incomes have increased in the UK. [4]</strong></p><section class="tib-hiddenbox"><p><img alt="" src="../../../ib/economics/images/textbook/inquiry-case-example-questions/demand-for-launderette(1).jpg" style="float: right; width: 400px; height: 306px;">The demand for Launderette services has fallen in the UK as household incomes have increased because more households can afford to own a washing machine and consumers have substituted launderettes services for a washing machine. This is shown by a fall in demand for launderette services.</p></section><h5>c. Explain the relationship between the launderette market and the market for washing<br role="presentation">machines. [4]</h5><section class="tib-hiddenbox"><p>The launderette market and the market for washing machines are substitute goods. As the price of washing machines has fallen over time the demand for launderette services has fallen and launderettes have closed. </p></section><h5>Investigation</h5><p><strong>Research the market for another product that has the characteristics of being an inferior good. Is the market declining?</strong></p></div><div class="blueBg"><h4><strong>Engel Curve (HL)</strong></h4><p>The nineteenth-century German economist, Ernst Engel studied how the demand for different goods and services changed with income over time. The Engel Curve relationship between income and demand is shown in diagram 2.24(1). In this example, the diagram shows how the demand for rice changes with income over time.</p><hr class="hidden"><p><img alt="" height="276" src="../../../ib/economics/images/textbook/ped/engel-curve.jpg" style="float: right;" width="421"></p><p>When income increases for poorer households the demand for rice increases as rice is considered a normal or luxury good by households on low incomes. Beyond point A, households are on middle incomes where rice becomes a necessity good to these consumers. This means that any increase in income beyond A leads to a less than proportionate increase in the demand for rice.</p><hr class="hidden"><p>Once household incomes rise above point B any increase in income will lead to a fall in demand for rice because it is now considered an inferior good by the consumer. Above income level B, households will not demand as much rice and switch to luxury good alternatives. Individuals might substitute rice-based meals for meat-based meals.</p><p>The Engel curve is useful in showing how the income elasticity of different goods changes over time. For example, the demand for goods such as smartphones would have been luxury goods when they were first launched with a YED of greater than one, but their YED falls as smartphones become a more established product amongst consumers. Very basic smartphones can become inferior goods over time. </p><hr class="hidden"><p>The Engel curve is useful in showing how the income elasticity of different goods changes over time. For example, the demand for goods such as smartphones would have been luxury goods when they were first launched with a YED of greater than one, but their YED falls as smartphones become a more established product amongst consumers. Very basic smartphones can become inferior goods over time. </p><h3><strong>Application of income elasticity of demand (HL)</strong></h3><h4><strong>Structural changes in the economy</strong></h4><p>YED data can be used to show how industrial structure changes in the economy over time, as household incomes rise when the economy grows. The YED for primary goods or commodities, which are often considered necessities, tend to have a YED of between 0 and 1. This means the demand for commodities tends not to grow as incomes rise in the economy over time. An economy that specialises in primary commodities, as some developing countries do, will experience slow growth as the world incomes rise.</p><p>Ma<img alt="" src="../../../ib/economics/images/textbook/ped/picture-26.png" style="float: left; width: 395px; height: 227px;" title="https://www.engadget.com/2020/01/17/netflix-and-chill-ben-jerrys-ice-cream/">nufactured goods such as cars and computers have greater positive YED values because consumers are more likely to buy this type of good as their income increases. When incomes increase over time, these industries may experience significant growth. Policymakers often see the development of manufacturing in developing countries as an effective way to deliver economic growth as world incomes rise. </p><hr class="hidden"><p>The service sector of an economy such as tourism and leisure tends to have the highest positive YED values. YED can be used to explain why the industrial structure of many economies is increasingly dominated by the service sector as household incomes rise.</p><h4><strong>Business strategy</strong></h4><p>Businesses respond to income changes by adapting what they sell. As incomes have generally increased over time in most economies, many firms have responded by improving the quality of the products they sell because the demand for these goods has a positive YED value. Ice cream brands like Haagen Das and Ben and Jerry's, have marketed their luxury good ice cream brands in response to rising incomes. In economic recessions when household incomes tend to fall, businesses that market inferior goods can see the demand for their goods rise as consumers switch to lower-priced inferior goods. Food producers, for example, might plan to increase the output of products that are inferior such as tinned, dried and frozen food.</p></div><div class="pinkBg"><div class="panel" style="box-shadow: rgba(0, 0, 19, 0.3) 0px 10px 30px -15px; border-color: rgb(39, 45, 105);"><div class="panel-heading" style="background-color: rgb(39, 45, 105);"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><h4><strong>Inquiry case example - Growth of the service sector in Asia</strong></h4></div></div><div class="panel-footer" style="background-color: rgba(39, 45, 105, 0.1);"><div><p>text</p></div></div></div><p>The question f<img alt="" src="../../../ib/economics/images/textbook/inquiry-case-example-questions/vietnam-service.jpg" style="float: left; width: 192px; height: 190px;" title="https://e.vnexpress.net/news/business/companies/vietnam-service-providers-jump-high-in-global-telecom-brand-rankings-4093986.html">or many Asian economies is whether the service sector is going to replace the manufacturing sector as an engine for economic growth. For example, Vietnam's service sector is now 45% of GDP and becoming an increasingly important influence over the economy. The biggest growth sectors in Vietnam are tourism and telecommunication but it is the rise in the country's retail sector that is going to be particularly important in the next five years.</p><hr class="hidden"><p><a href="../../../media/ib/economics/images/textbook/ped/new-elasticity/service-sector.pdf.html" target="_blank" title="Questions"><img class="ico" src="../../../thinkib/icons/question.png"> Worksheet questions</a></p><p><strong>Question</strong></p><p><strong>Explain how an understanding of income elasticity of demand can explain the growth in the service sector in </strong></p><p><strong>an economy. [10]</strong></p><section class="tib-hiddenbox"><p><img alt="" src="../../../ib/economics/images/textbook/inquiry-case-example-questions/tourism-market.jpg" style="float: right; width: 400px; height: 308px;">Answers should include:</p><ul><li>Definitions of income elasticity of demand and the service sector.</li><li>A diagram to show the growth of a service sector market like tourism in Vietnam.</li><li>An explanation that the service sector is more likely to contain normal and luxury good markets with positive YED values. As incomes rise in an economy like Vietnam the demand for tourism, telecoms and retail services will increase at a faster rate than the primary and manufacturing sectors. This means the service sector will grow faster than other sectors and account for a higher proportion of a country's GDP.</li></ul></section><h5>Investigation</h5><p><strong>Research the growth of the service sector of another economy in Asia. Does it follow a similar pattern to Vietnam?</strong></p></div><div class="panel panel-has-footer" style="box-shadow: rgba(51, 0, 0, 0.3) 0px 10px 30px -15px; border-color: rgb(124, 7, 21);"><div class="panel-heading" style="background-color: rgb(124, 7, 21);"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><p>Thinking about a key concept - change</p></div></div><div class="panel-body"><div><p><img alt="" src="../../../ib/economics/images/textbook/key-concepts/tv.jpg" style="float: right; width: 195px; height: 198px;" title="https://www.pinterest.co.uk/pin/323062973252447216/">As household incomes have increased in most economies over the last forty years and it is possible to explain how markets have changed by examining the relationship between income and demand for different goods and services. YED helps us to understand the market changes that are taking place. In the 1970s the colour television set was a luxury good and seen as a status symbol. At that time a colour TV was a bulky piece of technology that offered 3 or 4 channels and had poor (by today's standards) picture quality. They were also very expensive with a cost of around $3,000 at today's prices. As household incomes rose in the 1970s the demand for colour TVs increased at a more than proportionate rate with a YED of over 1. In 2020 you can buy an infinitely better television for a fraction of the cost of the 1970 version and the YED value is lower than it was in the 1970s.</p><hr class="hidden"><p><strong>Investigate another technology product that might have a similar relationship to household income as the colour TV.</strong></p></div></div></div><div class="panel panel-has-footer" style="box-shadow: rgba(17, 34, 51, 0.3) 0px 10px 30px -15px; border-color: rgb(39, 45, 105);"><div class="panel-heading" style="background-color: rgb(39, 45, 105);"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><p>Now test yourself</p></div></div></div><div class="tib-quiz" data-quiz-id="995" data-structure="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" data-score-answers="6d4a526a457a48584f763758344a7649472f76324c53614b78524c393439595570496d5a5971374b38686f3d"><div class="exercise"><div class="q-question"><p>Calculate the YED for good A if household incomes rise from <dollar>$</dollar>15,000 to <dollar>$</dollar>15,750 and quantity demanded rises from 200,000 units to 204,000.</p></div><div class="q-answer"><p><label class="radio" data-answer="16f4f75f3a35c611a7497770ffafb58a"><input type="radio"><span>+4.0</span></label></p><p><label class="radio" data-answer="ac8a65ebc365fdc641a9023c725c52ca"><input type="radio"><span> +0.4</span></label></p><p><label class="radio" data-answer="875e88e1e07100951fd600d433642d16"><input type="radio"><span> -4.0</span></label></p><p><label class="radio" data-answer="d1ab6103a7baf2fcf7a1611ac2299261"><input type="radio"><span> -0.4</span></label></p></div><div class="q-explanation"><p>+2% / +5% = +0.4</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>Calculate the change in household income if the quantity demanded for good B falls by 6% and its YED is -1.2.</p></div><div class="q-answer"><p><label class="radio" data-answer="bb38512d63b1741fa867795676b85dff"><input type="radio"><span> -0.5</span></label></p><p><label class="radio" data-answer="9599aa55dff74282eaeb5edf50b9f47e"><input type="radio"><span> -5.0</span></label></p><p><label class="radio" data-answer="dbc581a543da07477bfc2101f20f119b"><input type="radio"><span> +5.0</span></label></p><p><label class="radio" data-answer="d310cb367d993fb6fb584b198a2fd72c"><input type="radio"><span> 0.5</span></label></p></div><div class="q-explanation"><p>- 6% / +5% = -1.2</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>Which of the following is not true about YED?</p></div><div class="q-answer"><p><label class="radio" data-answer="feae9879ca7c6454de1eb82a84cca3d0"><input type="radio"><span>Inferior goods have a YED of 0</span></label></p><p><label class="radio" data-answer="4dfb1900edbad16b265cf5a585a947de"><input type="radio"><span> Normal goods have a positive YED</span></label></p><p><label class="radio" data-answer="41c895ceebeadb2629d07a9912cf1f6f"><input type="radio"><span> Luxury goods have a YED of greater than 1</span></label></p><p><label class="radio" data-answer="49215d7451d83237525f9da04eee81b3"><input type="radio"><span> Necessity goods have a YED of between 0 and 1</span></label></p></div><div class="q-explanation"><p>Inferior goods have a negative YED.</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>Which of the following goods is most likely to have a negative YED?</p></div><div class="q-answer"><p><label class="radio" data-answer="6ddeddef0a792e3b0789824d00d2d274"><input type="radio"><span> Designer handbag</span></label></p><p><label class="radio" data-answer="ba672c30ec919ddf836b94b8eae39c5d"><input type="radio"><span>Prestige car</span></label></p><p><label class="radio" data-answer="eb0115d909e44df47103932427307407"><input type="radio"><span> Tinned vegetables</span></label></p><p><label class="radio" data-answer="656e43581640c08d44b1eb0228846623"><input type="radio"><span> Electricity</span></label></p></div><div class="q-explanation"><p>Tinned food is the most likely good to be inferior and has a negative YED because a rise in income would lead to a fall in quantity demanded.</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>If incomes fall in a recession, what would you expect a chain of restaurants with a YED of +1.6 to do?</p></div><div class="q-answer"><p><label class="radio" data-answer="2dc7aa0cce851fb5d668627a2d678d1d"><input type="radio"><span> Set up a contract to order more tables and chairs</span></label></p><p><label class="radio" data-answer="e5e49c18be30a5329d3955b656c374d1"><input type="radio"><span> Decide to expand the number of their outlets</span></label></p><p><label class="radio" data-answer="a8f186163437daf05db227a2d562bc45"><input type="radio"><span> Hire more staff</span></label></p><p><label class="radio" data-answer="3ee77d52260f58d4178e11b67786d9b7"><input type="radio"><span> Negotiate with their suppliers to reduce food costs</span></label></p></div><div class="q-explanation"><p>A restaurant with a YED of +1.6 is a luxury good so it would take action to reduce costs in a recession bacause quantity demanded is likely to fall.</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>When countries experience a rise in income over time which of the following sectoral changes is most likely to occur?</p></div><div class="q-answer"><p><label class="radio" data-answer="13d39d2caa0c2905ef17e527c2b8ab30"><input type="radio"><span> The car manufacturing sector's output as a % of GDP will decrease</span></label></p><p><label class="radio" data-answer="3f6edc73d2667958fa9435c0526f05c5"><input type="radio"><span> The tourism sector's output as a % of GDP will increase</span></label></p><p><label class="radio" data-answer="e5698d87957bbd93f7fcb854a9c3ac1b"><input type="radio"><span> The consumer electronics sector's output as a % of GDP will decrease</span></label></p><p><label class="radio" data-answer="68ab34790ffae6218fc269fe78912379"><input type="radio"><span> The agricultural sector's output as a % of GDP will increase</span></label></p></div><div class="q-explanation"><p>Tourism is most likely to have and YED of greater than 1 which means its output will increase as a % of GDP</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>The demand for coffee from a local coffee shop has an income elasticity of +0.6. After an 8% rise in average incomes the demand for the coffee sold by the coffee shop is expected to:</p></div><div class="q-answer"><p><label class="radio" data-answer="c94b9a9c272c9fc62c854844fc29204e"><input type="radio"><span> Increase by 4.8%</span></label></p><p><label class="radio" data-answer="a33dc697e73a71fd9efa94424c8233b0"><input type="radio"><span> Decrease by 4.8%</span></label></p><p><label class="radio" data-answer="a64243fbf976f2959bbffbc9140d6e19"><input type="radio"><span> Increases by 13.3%</span></label></p><p><label class="radio" data-answer="d2b6fc9ca9710c2d7f82b89feec6cdf7"><input type="radio"><span> Decrease by 13.3%</span></label></p></div><div class="q-explanation"><p>+0.6 x +8% = +4.8%</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>The diagram shows the market for second-hand cars in a recession when real incomes are falling.</p><p><img alt="" height="231" src="../../../ib/economics/images/textbook/inquiry-case-example-questions/price-elasticity-cars.jpg" style="float: left;" width="353"></p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p>From the information in the diagram the most likely conclusion that can be made is:</p></div><div class="q-answer"><p><label class="radio" data-answer="f91d015bdac324b9a1cff5e8bc31fbdd"><input type="radio"><span> The price of new cars has fallen</span></label></p><p><label class="radio" data-answer="d78f8e6ee6bc8f7c76d9159b6f2fc69b"><input type="radio"><span> The price of second-hand cars has fallen</span></label></p><p><label class="radio" data-answer="e945736c02e68994affd57aa848ba5d5"><input type="radio"><span> The YED of second-hand cars is negative</span></label></p><p><label class="radio" data-answer="dc2d3a9ba48a45ed9d00f45b48dc1d0d"><input type="radio"><span> Second-hand cars are normal goods</span></label></p><p> </p></div><div class="q-explanation"><p>Incomes are falling and the demand for second-hand cars is increasing which means second cars would have a negative YED.</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>Which of the following best describes an inferior good?</p></div><div class="q-answer"><p><label class="radio" data-answer="b6b2205120db969d470cc4f32ca64db5"><input type="radio"><span> A good that is only bought by low-income families</span></label></p><p><label class="radio" data-answer="6a033b284531cbc8211cdc5c4bb02060"><input type="radio"><span> A good for where demand falls as income rises</span></label></p><p><label class="radio" data-answer="8a9c852592361a77b4a05ee7c94fe14c"><input type="radio"><span> A good that is very low quality</span></label></p><p><label class="radio" data-answer="8b65fb0f153f1549a8c2af720c8dbe98"><input type="radio"><span> A good with a YED of less than 1</span></label></p></div><div class="q-explanation"><p>The demand for an inferior good is negatively related to income.</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="exercise"><div class="q-question"><p>It is estimated that apple juice has an income elasticity of demand of 0.2. Based on this information, which of the following is most likely to be true?</p></div><div class="q-answer"><p><label class="radio" data-answer="298a1a4c8653a077fb14cec03b341f1e"><input type="radio"><span> Apple juice accounts for a small proportion of household expenditure</span></label></p><p><label class="radio" data-answer="083c8d135e6a28f3c8c2ed8cf912973e"><input type="radio"><span> Apple juice has few close substitutes</span></label></p><p><label class="radio" data-answer="553716dde2b14425d0e74f505c4cc2fa"><input type="radio"><span> Apple juice is a necessity good</span></label></p><p><label class="radio" data-answer="e25d2cea3e078c37e282bc904d234854"><input type="radio"><span> Apple juice is an inferior good</span></label></p></div><div class="q-explanation"><p>Necessity goods have a positive YED that is less than 1.</p></div><div class="actions"><span class="score" data-score="0"></span><button class="btn check"><i class="fa fa-check-square-o"></i> Check</button></div></div><p> </p><div class="totals"><span class="score">Total Score: </span><button class="btn btn-success check-total"><i class="fa fa-check-square-o"></i> Check</button></div></div><hr><script>document.querySelectorAll('.tib-teacher-only').forEach(e => e.remove());</script>
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<script>function aca793d3ec208bb01(gradeQuiz) {
var url = '/pages/quizzes/get-structure.php',
data = {
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'n-question' : gradeQuiz.nQuestion,
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'quiz-seconds' : gradeQuiz.quizSeconds,
'is-exam' : gradeQuiz.isExam,
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$('#task-ID').val(taskID);
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if ($('#save-quiz-progress').length) {
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}
$.when(
// Collect the std answers
checkAllExercises(quiz)
).then(
function(stdAnswers) {
var gradeQuiz = {
button: button,
quiz: quiz,
dataStructure: dataStructure,
scoreAnswers: scoreAnswers,
stdAnswers: stdAnswers,
checkTotal: true,
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exercise: null,
notRequired: notRequired,
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quizSeconds: quizSeconds,
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aca793d3ec208bb01(gradeQuiz);
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$("html, body").animate({ scrollTop: $('#task-completed-badge').position().top });
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);
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*/
$('section').on('click', '.exercise .btn.check', function(e) {
e.preventDefault();
var body = $('body');
var button = $(this);
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var quiz = $(this).closest('.tib-quiz');
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var nQuestion = 0;
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if (typeof $('.check-total').attr('data-task-id') !== 'undefined') {
var taskID = $('.check-total').attr('data-task-id');
$('#task-ID').val(taskID);
}
if (typeof scoreAnswers == 'undefined') {
scoreAnswers = null;
}
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button: button,
quiz: quiz,
dataStructure: dataStructure,
scoreAnswers: scoreAnswers,
checkTotal: false,
nQuestion: nQuestion,
exercise: exercise,
notRequired: false,
};
body.css('cursor', 'wait');
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$(this).find('.q-answer').find('input').attr('disabled', true);
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quiz.find('.check-total').trigger('click');
return;
}
gradeQuiz['nQuestion'] = nQuestion;
aca793d3ec208bb01(gradeQuiz);
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*/
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var exercise = $(this).closest('div.exercise');
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var url = '/pages/quizzes/get-self-study-question.php',
data = {
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};
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tibQuiz(quiz),
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dragOver(),
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}
}
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btn_reset.html('<i class="fa fa-repeat"></i> Reset ');
alert(response['msg']);
}
}, 'json');
});
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