A Level H1 Economics Market Failure Quiz

Answer Key - A-Level Economics H1 Quiz: Market Failure

Section A

1. Market Failure: Occurs when the free market mechanism fails to allocate resources efficiently, leading to a loss of social welfare. Example: Pollution from factories in Jurong Industrial Estate (Negative Externality). [2m definition, 2m example]
2. Distinction: Public goods are non-excludable and non-rival (e.g., street lighting), whereas merit goods are under-consumed because individuals undervalue the long-term benefits (e.g., education). [2m public, 2m merit]
3. Characteristics: Non-excludability (cannot prevent non-payers from using) and Non-rivalry (one person's use doesn't reduce availability for others). [2m each]
4. Negative Externality: A cost imposed on a third party who is not part of the transaction. Example: Second-hand smoke from cigarettes. [2m definition, 2m example]
5. Asymmetric Information: When one party in a transaction has more or better information than the other. In used cars, the seller knows the car's defects (lemons) while the buyer does not, leading to adverse selection. [2m concept, 2m application]

Section B

6. National Defense: Non-excludable and non-rival. Private firms cannot charge individuals for protection; thus, no profit incentive exists. Government provides it via taxation. [3m characteristics, 3m logic]
7. Positive Externality Diagram: Diagram should show MPB < MSB. Market equilibrium is at MPB=MPC, but social optimum is at MSB=MSC. Result: Under-consumption/Under-production. [3m diagram, 3m explanation]
8. Merit Goods: Consumers suffer from information failure (undervalue benefits) and there are positive externalities. Market produces less than the socially optimal quantity. [3m info failure, 3m externality]
9. PED of Cigarettes: Inelastic because of addictive nature (habitual consumption) and lack of close substitutes for nicotine. [3m addiction, 3m substitutes]
10. Subsidies for EVs: Lowers the cost of production/purchase $\rightarrow$ shifts supply curve right $\rightarrow$ lowers price and increases quantity to the socially optimal level. [3m mechanism, 3m outcome]
11. Negative Externality Diagram: Diagram should show MPC < MSC. Market equilibrium is at MPC=MPB, but social optimum is at MSC=MSB. Result: Over-production. [3m diagram, 3m explanation]
12. Free-Rider Problem: Because public goods are non-excludable, people can enjoy the benefit without paying. Firms cannot capture revenue $\rightarrow$ market fails to provide the good. [3m definition, 3m outcome]
13. Regulation: Legal restrictions (bans) shift the demand for the demerit activity to the left or set a legal limit, forcing consumption down to a socially acceptable level. [3m mechanism, 3m outcome]
14. Healthcare Asymmetry: Doctors have more knowledge than patients. This can lead to "supplier-induced demand" where unnecessary treatments are prescribed, leading to over-consumption/inefficiency. [3m asymmetry, 3m inefficiency]
15. Tax vs Quota: Tax generates revenue and allows the market to find the price; Quota provides a certain limit on quantity but creates deadweight loss without revenue. [3m tax, 3m quota]

Section C

16. Preschool Education:
    • Agree: Positive externalities (better social outcomes, lower crime) justify subsidies.
    • Counter: Merit good status (parents undervalue early childhood dev) and Equity (low-income families need access) are also primary reasons.
    • Judgment: Externalities are a key reason, but equity is often the driving force in Singapore. [4m analysis, 4m evaluation]
17. Indirect Taxes:
    • Pros: Internalizes the externality, generates revenue, reduces consumption.
    • Cons: Difficulty in quantifying the external cost, inelastic demand (tax may not reduce quantity much). [4m pros, 4m cons]
18. Direct Provision:
    • Pros: Ensures provision of non-excludable goods.
    • Cons: Government failure (lack of profit motive $\rightarrow$ inefficiency, bureaucratic waste, lack of consumer choice). [4m pros, 4m cons]
19. Education:
    • Merit Good: Individual benefits (higher wages) are undervalued by the student.
    • Positive Externality: Third-party benefits (more productive workforce, informed electorate).
    • Distinction: Merit good focuses on the individual's miscalculation; Externality focuses on others' benefits. [4m merit, 4m externality]
20. Healthcare Trade-off:
    • Efficiency: Subsidies correct under-consumption (allocative efficiency).
    • Equity: Ensures the poor have access (social equity).
    • Trade-off: High subsidies may lead to over-consumption (moral hazard) or fiscal strain (opportunity cost). [4m efficiency/equity, 4m trade-off]