Practice Exam 6
VCE Economics | Market Failure – Externalities, Public Goods and Information Failure
✎ Complete ALL questions on paper before opening the Model Answers lesson. No notes. Aim for 1 minute per mark.
SECTION A — MULTIPLE CHOICE (20 marks)
Question 1
A negative production externality occurs when:
A) A firm’s output benefits third parties
B) A firm’s production imposes uncompensated costs on third parties not involved in the transaction
C) Consumers overconsume a good
D) Government subsidises production
Question 2
Which of the following is an example of a negative consumption externality?
A) A person getting a flu vaccination
B) Second-hand smoke from a cigarette smoker affecting bystanders
C) A firm installing solar panels
D) A student attending university
Question 3
Non-excludability means:
A) A good cannot be consumed by more than one person at once
B) It is not possible, or very costly, to prevent someone who has not paid from consuming the good
C) The good is provided free by government
D) The good has no substitutes
Question 4
Non-rivalry means:
A) One person’s consumption does not reduce the amount available for others
B) The good is provided by a monopolist
C) The good has no competitors
D) Consumption is restricted to those who pay
Question 5
A lighthouse is a classic textbook example of:
A) A private good
B) A pure public good, being non-excludable and non-rival
C) A merit good
D) A demerit good
Question 6
The socially optimal output of a good generating a positive externality in consumption is:
A) Lower than the free market output
B) Higher than the free market output, as the market underprovides the good
C) The same as the free market output
D) Zero
Question 7
A subsidy to households for installing home insulation is best justified as a response to which market failure?
A) A negative externality
B) A positive externality, since reduced household energy use benefits third parties and households may undervalue long-run savings
C) A public good
D) Monopoly power
Question 8
The tragedy of the commons occurs when:
A) A resource is privately owned and overused
B) A common, non-excludable but rival, resource such as an ocean fishery is overexploited because no individual has an incentive to conserve it
C) A public good is underused
D) A firm monopolises a resource
Question 9
Which of the following is an example of a common resource (rival but non-excludable)?
A) A subscription streaming service
B) An open-access fishing ground
C) National defence
D) A toll road
Question 10
A congestion charge on driving into a city centre is an example of:
A) A subsidy correcting a positive externality
B) A Pigouvian tax correcting the negative externality of traffic congestion and pollution
C) A price floor
D) Public good provision
Question 11
Asymmetric information exists in the market for second-hand smartphones because:
A) Buyers know more about the phone’s condition than sellers
B) Sellers typically know more about the true condition and history of the phone than buyers
C) Both parties have identical information
D) Government controls all information
Question 12
Moral hazard in the context of comprehensive car insurance describes the tendency for insured drivers to:
A) Drive more carefully because they fear losing their insurance
B) Take greater risks, such as less careful driving, because they are insulated from the financial consequences of an accident
C) Pay lower premiums
D) Avoid using their car
Question 13
A demerit good, such as tobacco, is characterised by:
A) Positive externalities and underconsumption
B) Negative externalities and/or imperfect information about harms, leading to overconsumption relative to the social optimum
C) Being a public good
D) Perfectly elastic supply
Question 14
Which policy is most directly aimed at correcting the underprovision of a merit good such as vaccination?
A) A tax on the good
B) A subsidy to lower the price and/or public information campaigns to correct information failure
C) A price ceiling
D) A tariff on imports
Question 15
Allocative efficiency in the presence of a negative externality requires:
A) Producing where marginal private cost equals demand
B) Producing where marginal social cost equals marginal social benefit
C) Maximising producer profit
D) Minimising government intervention
Question 16
Cap-and-trade (tradeable permit) schemes address negative externalities by:
A) Banning the polluting activity entirely
B) Setting a total quantity limit (cap) on pollution and allowing firms to trade permits, so abatement occurs where it is cheapest
C) Fixing the price of the polluting good
D) Subsidising pollution
Question 17
Which best describes the free-rider problem in relation to a public good such as street lighting?
A) People are charged too much for the good
B) Individuals can benefit from the good without paying, so they have no incentive to voluntarily contribute, and the private market underprovides it
C) The good is overprovided by government
D) The good is rival in consumption
Question 18
Mandatory minimum energy efficiency standards for household appliances are a policy response to:
A) A public good problem only
B) A negative externality and/or an information failure, since consumers may not know or account for the long-run energy and environmental costs
C) A monopoly problem
D) A price ceiling
Question 19
Adverse selection in the market for health insurance results in:
A) Only healthy people buying insurance
B) A disproportionate number of higher-risk individuals seeking insurance, pushing up average premiums and potentially driving lower-risk individuals out of the market
C) Insurance companies knowing more than applicants
D) Insurance premiums falling over time
Question 20
Large-scale deforestation for agriculture is often cited as a market failure because:
A) Farmers make excessive profit
B) The market price of clearing land does not reflect the social costs of lost biodiversity, carbon storage and other ecosystem services
C) Government always subsidises clearing
D) Demand for agricultural land is perfectly elastic
SECTION B — SHORT ANSWER
Question 1 (4 marks)
Explain the concept of a common resource and use the example of an open-access fishery to explain why overfishing occurs.
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Question 2 (4 marks)
Explain, with reference to a diagram description, why the market under-provides a good that generates a positive consumption externality, such as vaccination.
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Question 3 (4 marks)
Distinguish between a public good and a common resource, giving an example of each.
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Question 4 (4 marks)
Explain how a congestion charge could correct the negative externality of traffic congestion in a city centre, and evaluate one limitation of this policy.
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Question 5 (4 marks)
Explain the concept of moral hazard and describe how it might arise in the context of government-guaranteed bank deposits.
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Question 6 (4 marks)
Explain how tradeable pollution permits (cap-and-trade) work and why they may achieve pollution reduction at a lower cost than a uniform regulatory standard.
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Question 7 (4 marks)
Explain why information failure in the market for private health insurance can lead to adverse selection, and describe one way this problem can be reduced.
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Question 8 (4 marks)
Explain the concept of allocative efficiency and use it to explain why a negative externality causes market failure.
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SECTION C — EXTENDED RESPONSE
Extended Response 1: Externalities and Environmental Policy
Extended Response 1(a) (6 marks)
Explain, using externality analysis, appropriate policy responses to: (i) plastic packaging waste polluting waterways; (ii) urban traffic congestion; (iii) household rooftop solar reducing reliance on fossil-fuel electricity.
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Extended Response 1(b) (3 marks)
Evaluate the case for and against banning single-use plastic bags outright, compared with taxing them.
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Extended Response 2: Information Failure and Public Goods
Extended Response 2(a) (5 marks)
Explain how information asymmetry affects the labour market when employers cannot directly observe worker productivity, and describe how signalling, such as educational qualifications, can help address this failure.
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Extended Response 2(b) (3 marks)
To what extent can public goods be efficiently provided by private charity or voluntary contribution rather than government funding? Discuss with reference to the free-rider problem.
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