Study Notes
Government intervention in markets is necessary to address market failures such as the non-provision of public goods, overconsumption of demerit goods, and underconsumption of merit goods. Governments also control prices to ensure fair access to essential goods and services.
- Market Failure — inefficient distribution of goods and services in the market. Example: Free market fails to provide public goods like street lighting.
- Public Goods — goods that are collectively consumed and non-excludable. Example: National defense and street lights.
- Demerit Goods — goods that are overconsumed and harmful to consumers. Example: Tobacco products.
- Merit Goods — goods that provide more benefits than consumers realize. Example: Education and healthcare.
- Price Controls — government-imposed limits on prices to ensure affordability. Example: Rent controls and minimum prices for agricultural products.
Exam Tips
Key Definitions to Remember
- Market Failure
- Public Goods
- Demerit Goods
- Merit Goods
- Price Controls
Common Confusions
- Confusing public goods with private goods
- Misunderstanding the reasons for price controls
Typical Exam Questions
- What is a demerit good? Goods that are overconsumed and harmful to consumers.
- How can a tax on producers improve resource allocation? By reducing the supply of demerit goods like sugar-sweetened drinks.
- Compare the effectiveness of minimum prices versus other health policies? Minimum prices can reduce consumption, but other policies may address root causes.
What Examiners Usually Test
- Understanding of market failure and its causes
- Ability to explain government interventions and their impact
- Comparison of different policy measures and their effectiveness