Government failure — Edexcel A-Level Economics A
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Government failure explained
Government failure occurs when an intervention intended to correct a market failure instead creates a net welfare loss, so society ends up worse off than before.
Read the full explanation
The key test is the change in total welfare: benefits of correcting the original market failure are outweighed by the costs of the intervention itself. Causes include imperfect information, where the government misjudges the size of an externality; unintended consequences, such as a price floor creating a surplus; administrative and enforcement costs; and regulatory capture, where the regulated industry influences the regulator. For example, a subsidy meant to encourage a merit good may be captured by producers, or a maximum price may cause shortages and black markets.
Your focus
- Define government failure as intervention that results in a net welfare loss.
- Explain causes of government failure, including imperfect information, unintended consequences, administrative costs and regulatory capture.
- Apply the concept to an example and evaluate whether the intervention produced a net welfare loss.
Government failure exam tips
Marking Points
- Government failure is defined as government intervention that results in a net welfare loss, judged by comparing total welfare with and without the intervention.
- It is distinct from market failure: market failure is a misallocation of resources by the market, while government failure is a misallocation caused or worsened by intervention.
- Causes include imperfect information, unintended consequences, administrative and enforcement costs, and regulatory capture.
- A concrete example, such as a price floor creating a surplus or a subsidy being captured by producers, should be used to show the net welfare loss.
- Evaluation should weigh the size of the original market failure against the costs of intervention and consider whether an alternative policy would produce a smaller net loss.
Examiner Tips
- 💡Define government failure precisely as intervention causing a net welfare loss, and use the welfare comparison as the test.
- 💡Give a specific example and trace the causal chain from intervention to unintended consequence to net welfare loss.
- 💡Evaluate by comparing the scale of the original market failure with the costs of intervention, and consider whether a different policy would reduce the net loss.
Common Mistakes
- Equating any imperfect policy with government failure: government failure requires a net welfare loss, not merely a policy that falls short of its ideal.
- Confusing government failure with market failure: market failure arises from the market mechanism, while government failure arises from intervention.
- Assuming intervention always improves welfare: costs such as administration, enforcement and unintended consequences can outweigh the benefits of correcting the original failure.
- Ignoring the counterfactual: without comparing welfare with and without the intervention, a net welfare loss cannot be established.