Question 1

Nonrivalry and nonexcludability are the main characteristics of

Accepted Answer

Nonrivalry means that the consumption of the good by one person does not reduce its availability for others to consume, while nonexcludability means that it is difficult or impossible to exclude individuals from consuming the good. Public goods possess both of these characteristics, while private goods possess neither. Consumption goods and capital goods can be either rivalrous or non-rivalrous and either excludable or non-excludable, depending on the specific characteristics of the good.

Question 2

Which of the following is an example of a public good?

Accepted Answer

A weather warning system is an example of a public good because it is non-excludable, meaning that people cannot be restricted from using it, and non-rivalrous, meaning that one person's use does not diminish others' use. A television, sofa, and bottle of soda are all examples of private goods, which are both excludable and rivalrous.

Question 3

When producers do not produce the eﬃcient amount of a product because they are unable to charge consumers what they need to do so, then there exists a

Accepted Answer

A

Question 4

At the optimal quantity of a public good,

Accepted Answer

At the optimal quantity, marginal benefit (MB) equals marginal cost (MC). This is because the optimal quantity is where the additional benefit of producing one more unit of the public good equals the additional cost of producing that unit. Therefore, choice C is the best answer.

Question 5

Suppose that Mick and Cher are the only two members of society and are willing to pay $10 and $8, respectively, for the third unit of a public good. Also, assume that the marginal cost of the third unit is $17. We
Can conclude that

Accepted Answer

The third unit should be produced because the combined willingness to pay ($10 + $8 = $18) exceeds the marginal cost of $17, indicating that the benefits to society (Mick and Cher) outweigh the cost of production.

Question 6

The two main characteristics of a public good are

Accepted Answer

Public goods are characterized by nonrivalry, meaning one person's consumption of the good will not diminish its availability to someone else, and nonexcludability, meaning it is difficult or impossible to exclude people from using the good once it is produced.

Question 7

Demand-side market failures occur when

Accepted Answer

Demand-side market failures occur because demand curves do not reflect consumers' full willingness to pay for a good or service. This means that consumers may be willing to pay more than the market price for a good or service but are not able to do so, resulting in an inefficient allocation of resources. This can lead to underproduction or overproduction of a good or service and result in deadweight loss.

Question 8

The market system does not produce public goods because

Accepted Answer

Public goods are non-excludable and non-rivalrous, meaning that once they are produced, everyone can benefit from them without reducing their availability for others. Private firms cannot prevent those who are unwilling to pay for such goods from enjoying their benefits, which means that there is no incentive for firms to produce public goods on their own.

Question 9

Unlike a private good, a public good

Accepted Answer

A public good is a good or service that is non-excludable and non-rival, which means that everyone can benefit from it and using it does not reduce its availability for others. This makes it difficult to charge individuals for the good or service, as non-payers can still benefit from its production. Therefore, public goods have benefits available to all, including non-payers. Option A is incorrect as public goods have opportunity costs, regardless of their non-exclusivity or non-rivalry. Option C is incorrect as public goods can produce both positive and negative externalities. Option D is incorrect as public goods are non-excludable and non-rival, which means they are not characterized by rivalry and excludability.

Question 10

A public good

Accepted Answer

A public good is a type of good that is available to all individuals and cannot be denied to anyone. Examples of public goods include street lighting and national defense. Public goods are non-excludable, meaning that once they are provided, individuals cannot be excluded from using them, and are non-rival, meaning that one person's use of the good does not reduce its availability to others. Since private firms cannot exclude people from using public goods or restrict access to them, public goods cannot be proﬁtably produced by private ﬁrms. Public goods can also produce positive or negative externalities, such as reducing crime rates, but the presence of externalities is not necessary for a good to be considered a public good.

Question 11

Esteban, Mariko, and Greta are the only three people in a community. Esteban is willing to pay $20 for the ﬁfth unit of a public good; Mariko, $15; and Greta, $25. Government should produce the ﬁfth unit of the public good
If the marginal cost is less than or equal to

Accepted Answer

The government should produce the fifth unit of a public good if the total willingness to pay (sum of individual willingness to pay) exceeds the marginal cost. Esteban ($20) + Mariko ($15) + Greta ($25) = $60. Therefore, production is justified if the marginal cost is less than or equal to $60.

Question 12

Because of the free-rider problem,

Accepted Answer

The free-rider problem occurs when individuals can benefit from a public good without paying for it. As a result, the market demand for a public good is either nonexistent or understated because individuals will not willingly pay for something they can receive for free. Therefore, the government often intervenes to provide public goods that the private sector would not supply efficiently.

Question 13

If many people in a community get ﬂu shots, the whole community beneﬁts, including those who did not get ﬂu shots. Therefore, not enough people may decide to get the shots. This is one illustration of

Accepted Answer

This is an example of demand-side market failure where individuals don't take necessary actions (get flu shots) even though it would benefit them and the community as a whole. The decision not to get the shots is based on individual preferences and behavior, leading to a suboptimal outcome for the community.

Question 14

People enjoy outdoor holiday lighting displays and would be willing to pay to see them, but can't be made to pay. Because most people who put up lights are unable to charge others to view them, they don't put up as
Many lights as people would like. This is an example of a

Accepted Answer

This is an example of a demand-side market failure because the enjoyment people get from viewing holiday lights is a benefit they receive without paying, leading to under-provision of the good (in this case, holiday lights) since those who put up the lights cannot easily charge viewers.

Question 15

Nonexcludability describes a condition where

Accepted Answer

Nonexcludability refers to the inability to prevent individuals from accessing a good once it has been produced, making it difficult to exclude non-payers from using the good. This characteristic often leads to free-rider problems, where individuals consume a good without contributing to its cost.

Question 16

Which of the following statements is not true?

Accepted Answer

Public goods can also be provided by private individuals or organizations, and not solely by government.

Question 17

Public goods are those for which there

Accepted Answer

Public goods are characterized by nonrivalry, which means that consumption by one individual does not reduce the amount available to others, and nonexcludability, which means that it is difficult or impossible to prevent people from accessing the good. These features make it difficult for private markets to provide public goods efficiently, as there is no way for a provider to charge for its use and exclude non-payers. The absence of rivalry also means that there is no depletion of the good as it is used, so everyone can benefit from it without reducing its value. Therefore, public goods require government intervention or collective action to ensure their provision. The free-rider problem arises from the nonexcludability feature, as individuals can benefit from a public good without paying for it, leading to underinvestment in its provision. Externalities are a different concept, referring to the effects of a market transaction on parties who are not involved in the transaction. Public goods may or may not have external effects, but they share the nonrivalry and nonexcludability features.

Question 18

If one person's consumption of a good does not preclude another's consumption, the good is said to be

Accepted Answer

Nonrival in consumption means that one person's consumption of the good does not diminish the availability of the good for others to consume. This is opposed to rival in consumption, where one person's consumption of the good does limit the availability of the good for others. Nonexcludable goods are those that cannot be easily restricted or kept from being consumed by non-payers, while excludable goods can be readily controlled and kept from non-payers. The given description fits best with the concept of nonrival in consumption.

Question 19

Toll-free roads sometimes get congested, such as during rush-hour traﬃc. During those times, we would say that these roads are

Accepted Answer

Toll-free roads are nonexcludable, meaning that anyone can use them, and rival, meaning that the use of the road by one person reduces its availability for others. When the road becomes congested, it becomes rival as the more people use it the slower it gets and there is limited availability for others. Therefore, D is the correct answer.

Question 20

A demand curve for a public good is determined by

Accepted Answer

The demand curve for a public good is determined by summing vertically the individual demand curves for the public good. This is because public goods are non-excludable and non-rivalrous, meaning that one person's consumption does not reduce the availability for others, and it's not feasible to exclude anyone from using the good. Therefore, the total willingness to pay (or demand) at each price level is the sum of each individual's willingness to pay, which is represented by vertically summing the individual demand curves.

Quiz 5: Public Goods, Public Choice, and Government Failure