Market failure — AQA GCSE Economics
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Market failure explained
Market failure occurs when the free market mechanism fails to allocate scarce resources efficiently, leading to a net loss in social welfare.
Read the full explanation
Students must understand that while markets usually balance supply and demand, they can over-produce harmful goods like tobacco or under-produce beneficial ones like education. This misallocation of resources generates significant costs to society, such as environmental degradation or poor public health. To counter these negative outcomes, government intervention is often required. Governments might use taxation to reduce the consumption of demerit goods, provide subsidies to encourage merit goods, or introduce regulations to limit pollution, thereby correcting the market failure and improving efficiency.
Your focus
- Define market failure as the inefficient allocation of resources by the free market.
- Identify the social and economic costs associated with the misallocation of resources.
- Explain how various forms of government intervention can be used to correct market failure.
Market failure exam tips
Examiner Tips
- 💡Always link the concept of market failure directly to the misallocation of resources rather than just describing a negative situation.
- 💡When discussing the costs of misallocation, use specific examples like pollution or healthcare burdens to illustrate the impact on society.
- 💡Be prepared to evaluate different methods of government intervention, comparing how taxes, subsidies, and regulations address specific market failures.
Common Mistakes
- Believing market failure means a business has gone bankrupt; it actually refers to the inefficient allocation of resources across a whole market.
- Assuming government intervention always succeeds; governments can also fail if their interventions cause further inefficiencies or unintended consequences.
- Thinking that the market mechanism always ignores consumer wants; it usually works well, but fails when external costs or benefits are not reflected in prices.