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government taxes subsidies
A LevelEconomics~4 min read
Overview
This lesson explores how governments intervene in markets using taxes and subsidies to correct market failures, particularly those arising from externalities. We will analyse the mechanisms, effects, and limitations of these policy tools in achieving allocative efficiency and social welfare.
Introduction to Government Intervention and Market Failure
Government intervention in markets is often justified when **market failure** occurs, meaning the free market fails to allocate resources efficiently. Common causes of market failure include **externalities** (positive or negative), public goods, information asymmetry, and monopolies. While the free...
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Key Concepts
- Market Failure: Situations where the free market mechanism leads to an inefficient allocation of resources.
- Externality: A cost or benefit experienced by a third party not involved in the production or consumption of a good or service.
- Indirect Tax: A tax levied on goods and services rather than on income or profits, paid by consumers but collected by producers.
- Subsidy: A government payment to producers or consumers, designed to encourage production or consumption of a good or service.
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Exam Tips
- →When analysing taxes and subsidies, always draw clear, well-labelled diagrams showing the shift in the supply curve, changes in price and quantity, and the incidence/benefit distribution. Clearly mark the deadweight loss for taxes.
- →For evaluation questions, go beyond simply stating 'it works' or 'it doesn't work'. Discuss the conditions under which taxes/subsidies are more or less effective (e.g., elasticity, information availability, political will).
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