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Market Failure

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AP Microeconomics

Definition

Market failure occurs when the allocation of goods and services by a free market is not efficient, leading to a net social welfare loss. This situation arises when market outcomes do not reflect the true costs and benefits of production or consumption, often due to externalities, public goods, information asymmetries, or market power. Understanding market failure is crucial in analyzing how various economic systems allocate resources and the role of government intervention in correcting inefficiencies.

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5 Must Know Facts For Your Next Test

  1. Market failure can lead to inefficient resource allocation, where some goods are overproduced while others are underproduced.
  2. Common causes of market failure include externalities like pollution, lack of public goods, information asymmetry where one party has more information than another, and market power held by monopolies.
  3. Government intervention is often required to correct market failures, typically through regulations, taxes, subsidies, or the provision of public goods.
  4. Without intervention, market failures can result in significant social costs, such as environmental degradation or inadequate access to essential services.
  5. Identifying and addressing market failures is critical for improving overall economic efficiency and ensuring equitable resource distribution.

Review Questions

  • How do externalities contribute to market failure, and what are some examples?
    • Externalities contribute to market failure by causing a disconnect between private costs and social costs. For example, pollution from a factory imposes health costs on nearby residents that are not reflected in the price of the factory's products. As a result, the factory may produce more than is socially optimal because it does not bear the full cost of its actions. This leads to overproduction of harmful goods while underestimating the social impact on affected communities.
  • Evaluate the effectiveness of government interventions in correcting market failures associated with public goods.
    • Government interventions can be effective in correcting market failures related to public goods by ensuring their adequate provision. Since public goods like national defense or street lighting are non-excludable and non-rivalrous, private markets may underprovide them due to lack of profit incentives. By funding these services through taxation and providing them directly, governments can ensure that society enjoys these benefits without exclusion, which helps align production with societal needs.
  • Assess the long-term implications of unaddressed market failures on economic growth and inequality within a society.
    • Unaddressed market failures can have severe long-term implications for both economic growth and inequality. When resources are misallocated due to factors like monopolies or externalities, it stifles competition and innovation, ultimately hindering economic growth. Additionally, if certain groups disproportionately bear the costs of negative externalities or lack access to essential public goods, this exacerbates income inequality. Over time, persistent market failures can lead to systemic issues that undermine social cohesion and economic stability.
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