This topic explores the limitations of markets, specifically focusing on market failure through positive and negative externalities, and the various govern
Topic Synopsis
This topic explores the limitations of markets, specifically focusing on market failure through positive and negative externalities, and the various government interventions used to correct these failures.
Key Concepts & Core Principles
- Market failure: when the free market leads to an inefficient allocation of resources, resulting in a loss of economic welfare.
- Externalities: costs or benefits that affect third parties not involved in the transaction (e.g., pollution from a factory is a negative externality).
- Public goods: non-excludable and non-rivalrous goods (e.g., street lighting) that the market under-provides due to the free-rider problem.
- Merit goods: goods that are under-consumed if left to the market because individuals underestimate their benefits (e.g., education).
- Demerit goods: goods that are over-consumed because individuals underestimate their costs (e.g., cigarettes).
Exam Tips & Revision Strategies
- Ensure you can distinguish between positive and negative externalities.
- When evaluating government policies, always consider the potential for government failure or unintended consequences.
- Remember to apply the concept of opportunity cost when discussing government intervention.
Examiner Marking Points
- Definition of positive and negative externalities
- Explanation of government policies to correct externalities (taxation, subsidies, state provision, legislation, regulation, information provision)
- Evaluation of the impact of government policies to correct externalities
- Evaluation of the costs (including opportunity cost) and benefits of government policies to correct externalities