Economics-A-level-Aqa
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1-economic-methodology-and-the-economic-problem4 主题
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2-individual-economic-decision-making4 主题
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3-price-determination-in-competitive-markets10 主题
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types-of-economic-integration
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protectionist-policies-quotas-and-export-subsidies
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protectionist-policies-tariffs
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protectionist-policies-an-introduction
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the-benefits-and-costs-of-trade
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international-trade
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globalisation
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types-of-supply-side-policies
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an-introduction-to-supply-side-policies
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fiscal-policy-budget-balances-and-national-debt
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types-of-economic-integration
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4-production-costs-and-revenue11 主题
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Production & Productivity
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fiscal-policy-types-of-public-expenditure-and-taxation
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fiscal-policy-an-introduction
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regulating-the-financial-system
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monetary-policy-transmission-mechanisms
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central-banks-and-monetary-policy
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commercial-and-investment-banks
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financial-assets
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financial-markets
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conflicts-between-the-macroeconomic-objectives
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price-level-global-influences
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Production & Productivity
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5-perfect-and-imperfectly-competitive-markets-and-monopolies12 主题
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price-level-deflation
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price-level-inflation
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employment-and-unemployment
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the-economic-cycle
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the-impact-of-economic-growth
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economic-growth
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the-multiplier-and-basic-accelerator-process
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macroeconomic-equilibrium
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long-run-aggregate-supply-lras
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short-run-aggregate-supply-sras
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aggregate-demand-ad
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injections-and-withdrawals-into-the-circular-flow
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price-level-deflation
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6-the-labour-market7 主题
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7-income-and-wealth-distribution4 主题
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8-the-market-mechanism-market-failure-and-government-intervention16 主题
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government-intervention-price-controls
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government-intervention-indirect-taxation-and-subsidies
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government-intervention-an-introduction
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market-failure-market-imperfections
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market-failure-merit-and-demerit-goods
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market-failure-tragedy-of-the-commons
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market-failure-positive-externalities
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market-failure-negative-externalities
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market-failure-public-private-and-quasi-public-goods
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an-introduction-to-market-failure
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the-market-price-mechanism
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government-policies-to-reduce-poverty-and-inequity
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the-problem-of-poverty
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the-lorenz-curve-and-gini-coefficient
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income-and-wealth-distribution
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discrimination-in-the-labour-market
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government-intervention-price-controls
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9-measuring-macroeconomic-performance5 主题
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10-how-the-macroeconomy-works6 主题
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11-economic-performance8 主题
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12-financial-markets-and-monetary-policy6 主题
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13-fiscal-and-supply-side-policies5 主题
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14-the-international-economy16 主题
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using-index-numbers
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analysing-changes-to-market-equilibrium
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the-determination-of-market-equilibrium
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supply-curves-real-world-analysis
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supply-curves
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demand-curves-real-world-analysis
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demand-curves
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using-behavioural-economics
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behavioural-economics
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imperfect-information
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consumer-behaviour
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production-possibility-diagrams
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scarcity-choice-and-the-allocation-of-resources
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economic-resources
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economic-activity
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economic-methodology
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using-index-numbers
government-intervention-an-introduction
Reasons why Government Intervene
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Nearly every economy in the world is a mixed economy and has varying degrees of government intervention
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One of the main reasons that governments intervene in markets is to correct various market failures
Diagram: Reasons for Government Intervention

1. To correct market failure
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In many markets, there is a less than optimal allocation of resources from society’s point of view, resulting in market failure
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Market failure can occur for a number of reasons, e.g. externalities, overconsumption of demerit goods or monopoly power
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In maximising their self-interest, firms and individuals will not self-correct this allocation of resources and there is a role for the government
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To prevent market failure, a government can intervene to improve the economic performance of firms and markets and influence the level of production or consumption
2. Redistribute income and wealth
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Intervention seeks to achieve a more equitable (fairer) distribution of income and wealth to improve lives of citizens
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Taxing the rich to support poorer households can reduce poverty and have impacts on individuals and the economy
3. Support firms
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In a global economy, governments choose to support key industries so as to help them remain competitive
4. Collect tax revenues
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Governments need money to provide essential services, public goods and merit goods
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Services can be paid for with revenue raised through interventions such as taxation, privatisation, sale of licences (e.g. 5G licences), and sale of goods/services
5. Achieve macroeconomic objectives
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Macroeconomic objectives are centred on improving the overall performance of the economy and living standards for the population as a whole
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Government intervention in markets can influence economic stability and promote economic growth
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E.g By providing essential public health services, the government can improve the health and therefore, living standards of citizens
Government Objectives & Resource Allocation
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Government (state) involvement aims to improve the efficiency of markets by altering the allocation of resources
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The level and type of intervention used depend on the government’s macroeconomic objectives
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Free-market economists argue that government intervention should be limited to all but the most basic services such as the provision of national defence
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Other economists argue that the government should intervene in all areas of the economy to ensure the most efficient and equitable distribution of resources
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Common Types of Intervention to Correct Market Failure
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There are a number of ways in which governments can intervene to correct market failure and influence the allocation of resources
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The microeconomic and macroeconomic objectives of a government also affect how governments intervene in an economy
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Governments can implement market-based and non-market based policies
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Market-based policies involve the government taking action to affect the conditions of supply or demand and therefore price and output, e.g. by offering subsidies
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Non-market based policies occur when the government directly intervenes in the market, e.g. by legally enforcing regulations such as smoking bans or direct state provision (e.g. NHS)
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Diagram: Common Types of Intervention to Correct Market Failure

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The main ways in which governments intervene are classified as:
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Public expenditure
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Taxation
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Price controls
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Legislation and regulation
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Examples
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The UK government provides subsidies to consumers to purchase electric vehicles
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The subsidy lowers the relative cost and may incentivise consumers to purchase an electric car. If there is increased demand, producers may allocate more resources to producing these goods
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The UK government has set a price cap (maximum price) that energy suppliers can charge consumers for a unit of energy. This is to ensure that energy prices are fair
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The Office of Gas and Electricity markets (OFGEM) regulates this market
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Examiner Tips and Tricks
In your exam, you should be able to explain why there is a role for governments within a market economy and evaluate the various methods of government intervention in a particular market, such as the healthcare or telecoms market.
Responses