EC120 Chapter Notes - Chapter 11: Rush Hour, Complementary Good, Abundant Number

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17 Aug 2016

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Ec120 chapter 11: public goods and common resources. Group various goods in economy according to 2 characteristics: Can people be prevented from using the good: excludability: property of a good where person can be prevented from using it. Does one person"s use of good diminish another person"s ability to use it: rival in consumption: property of a good where one person"s use diminishes other person"s use. Private goods: goods that are both excludable and rival. Excludable: you can prevent someone from eating ice cream don"t give it to them. Rival in consumption: when one person eats the ice cream cone, you can"t give it to another person. Most goods in economy are private goods. Public goods: goods that are neither excludable nor rival. People can"t be prevented from using it, and one person"s use doesn"t reduce another person"s ability to use it.

Related Questions

Question 3

We saw in class that the same good can fall in different categories (public/private/club/common resource) depending on circumstances. An example of such a good would be watching a movie at the theater. If a lot of people want to watch it, the movie is a _________. If very few people want to watch it (to the point where a room could not even be filled), the movie is likely to be a _______.

A. a common resource; a public good

B. a public good; a common resource

C. a private good; a club good

D. a club good; a private good

3 points

Question 4

Which of the following statements about the free-rider problem is not true?

A. Individuals have an incentive to free-ride when the good is not excludable.

B. The kinds of goods for which the free rider problem arises are common resources and public good.

C. Markets for goods for which there is a free-rider problem are inefficient because not enough of the good is produced.

D. Goods for which the free-rider problem exists tend to be over provided relative to what would be optimal.

4 points

Question 5

To achieve the efficient provision of public goods, the

A. market should be allowed to operate without government intervention.

B. government must limit the provision of those goods.

C. government must tax producers of those goods.

D. government must either provide those goods or subsidize their production.

3 points

Question 6

Which of the following statements about public goods is not true?

A. Because people cannot be excluded from their consumption and thus have no incentive to pay for them, public goods are underprovided by the market.

B. Efficiency requires that the government provide or fund (subsidize) the provision of all public goods.

C. Efficiency requires that the government provide or fund only the public goods that create more benefits than costs to society.

D. In reality, it is hard to provide public goods efficiently.

3 points

Question 7

Public goods must be provided by the government as the market on its own will fail to provide them. However, even with government provision it is very hard to achieve efficiency. Why?

A. In reality, it is very hard (if not impossible) to accurately estimate the benefits of providing a public good.

B. A. In reality, there can be overruns in the cost of providing the public good.

C. Government decisions about which public goods to provide can be influenced by lobbying by interest groups.

D. All of the above are true.

4 points

Question 8

Which of the following is not a common resource?

A. congested roads

B. clean water

C. wild life, which hunters want to hunt and others want to view.

D. a fireworks display.

3 points

Question 9

Many species of animals must be protected by law to keep them from extinction. Why are cows not one of these endangered species even though there is such a high demand for beef?

A. Cows reproduce at a high rate and have adapted well to their environment.

B. Public policies protect cows from predators and diseases.

C. Cows are privately owned (private goods), whereas many endangered species are owned by no one (common resources).

D.There is a natural ecological balance between the birth rate of cows and human consumption.

3 points

Question 10

Which of the following statements about common resources is not true?

A. Due to the free-rider problem, common resources tend to be overused.

B. Because there is rivalry in the consumption of common resources, whenever one person uses a common resource it is imposing a negative externality on others who might also want to use it.

C. There are no private solutions to the management of common resources.

D. One of the solutions that ensures that common resources are properly managed is their privatization.

3 points

Question 11

In our analysis of the firmâs behavior and goals, when we talk about cost, we include _________, and when we talk about profit, we mean ________.

A. Explicit costs only; economic profit

B. Implicit costs only; economic profit

C. Implicit costs only; accounting profit

D. Explicit + implicit costs; economic profit

E. Explicit + implicit costs; accounting profit

3 points

Question 12

One of the differences between explicit and implicit costs is that

A. explicit costs must be greater than implicit costs.

B. explicit costs do not require a direct monetary outlay, whereas implicit costs do.

C. implicit costs do not require a direct monetary outlay, whereas explicit costs do.

D. implicit costs must be greater than explicit costs.

3 points

Question 13

Which of the following is FALSE:

A. If accounting profit is zero, then economic profit is negative

B. Economic profit takes cost the opportunity cost of time and capital into account

C. Economic Profit = Accounting Profit + Implicit Cost

D. Economic Profit = Accounting Profit â Implicit Cost

3 points

Question 14

Which of the following is an example of an implicit cost?

(i) the owner of a firm forgoing an opportunity to earn a large salary working in Wall Street

(ii) interest paid on the firm's debt

(iii) rent paid by the firm to lease office space

A. (ii) and (iii) only

B. (i) and (iii) only

C. (i) only

D. (iii) only

3 points

sapphirekangaroo316

1. Use the table below for the following question. Suppose you have a budget of $6 and that brownies and Twizzlers cost $1 each. What is the consumer optimum?

Number of Brownies	Total Utility of Brownies	Marginal Utility of Brownies	Number of Twizzlers	Total Utility of Twizzlers	Marginal Utility of Twizzlers
0	0	-	0	0	-
1	10	10	1	6	8
2	19	9	2	13	7
3	26	7	3	19	6
4	30	4	4	23	4
5	30	0	5	25	2
6	29	-1	6	25	0

6 brownies

3 brownies and 3 Twizzlers

4 brownies and 2 Twizzlers

any combination of 6 because they're both $1

2. Use the table below for the following question. What is the consumer equilibrium for a $6 budget if the price of brownies rises to $1.50 and the price of Twizzlers remains at $1.00?

Number of Brownies	Total Utility of Brownies	Marginal Utility of Brownies	Number of Twizzlers	Total Utility of Twizzlers	Marginal Utility of Twizzlers
0	0	-	0	0	-
1	10	10	1	6	8
2	19	9	2	13	7
3	26	7	3	19	6
4	30	4	4	23	4
5	30	0	5	25	2
6	29	-1	6	25	0

The consumer will buy all Twizzlers because they're cheaper.

4 brownies

3 Twizzlers and 2 brownies

3 brownies and 3 Twizzlers

3. At Nice Price for the Ice, an ice cream parlor, customers routinely buy a scoop of ice cream for $3. If consumers purchase one scoop of ice cream at $3, then why don't they keep buying more and more scoops for $3 until the store sells out?

People would not want more than one scoop of ice cream because then they would have less money to spend on other goods.

People do not want to consume all the scoops of ice cream because their total utility is higher the less they eat.

At some point, customers do not value an additional scoop at $3, so they will not pay $3 for a scoop after they reach that point.

4. Suppose you plan on eating 50 potato chips. As you start consuming potato chips, your marginal utility is very high, but it begins to fall slowly until you've eaten 10 chips. After you have eaten 10 chips, your marginal utility decreases even faster with each additional chip. The marginal utility continues to decline until you've eaten 49 chips. The fiftieth chip does not give you any additional utility. After 50 chips, your mouth gets so salty that it's unpleasant to eat anymore, so marginal utility is actually negative for those chips. How many chips should you eat in order to maximize your total utility?

5. As you start consuming potato chips, your marginal utility is very high, but it begins to fall slowly until you've eaten 10 chips. After you have eaten 10 chips, marginal utility decreases even faster with each additional chip. The marginal utility continues to decline until you've eaten 49 chips. The fiftieth chip does not give you any additional utility. After 50 chips, your mouth gets so salty that it's unpleasant to eat anymore, so marginal utility is actually negative for those chips. How many chips should you eat in order to maximize your marginal utility?

6. At current levels of consumption, Alice is spending her entire budget. If Alice gets 3 utils of satisfaction per dollar spent on ice cream and 2 utils per dollar spent on shampoo, then how should she adjust her consumption to get closer to the consumer optimum?

She is already at the consumer optimum, so no adjustment is necessary.

She should buy more ice cream and less shampoo.

She should buy more shampoo and less ice cream.

She should buy more of both goods.

7. Suppose you are at a restaurant and your favorite dish costs $20. You can get your next-favorite dish for $17. If your next-favorite dish gives you 100 utils, how many additional utils do you need from your favorite dish to spend the extra $3?

17.65

117.65

8. The diamond water paradox is the observation that water is essential to life and inexpensive, while diamonds are not essential and are highly-priced. Which of the other pairs of goods exhibit a pricing structure similar to water and diamonds?

economy & luxury cars

rice & truffles (very expensive mushrooms)

paper clips & gasoline

paper & textbooks

9. Rice is a cheap staple food eaten several times a day by many people all over the world. In Trufflelandia, residents also eat expensive mushrooms known as truffles once every year as a birthday celebration. Rice keeps the people alive and truffles are not necessary for sustaining their lives. Why is rice so cheap and truffles so expensive?

Truffles taste better, so they are worth more money.

Rice is easy to cook, so people buy a lot of it. If people are going to buy so much, then it has to be cheap.

Truffles are more nutritious, and healthy food is always more expensive than unhealthy food.

People eat so much rice that an additional serving of rice has little marginal value, but the marginal value of another serving of truffles is very high.

oliverat570

PART A

1. In which of the following situations is the Coase theorem likely to apply? Explain.

a. The neighbor who lives below you in the apartment building loves to play old John Denver records at loud volume early in the morning. In fact, his favorite song seems to be âThank God Iâm a Country Boy.â You hate old John Denver songs and this one in particular.

b. You have just moved to Beijing and quickly discover that you are allergic to smog. It causes you great pain in breathing and limits your ability to work. Furthermore, you have medical expenses related to treatment for its health effects on you.

c. Medical research in the 1990s has revealed a specific cause of birth defects related to a certain drug prescribed for pregnant women in the 1960s (thalidomide).

d. The water in the huge underground Ogalalla aquifer in the Great Plains region of the United States is being nitrate contaminated due to agricultural fertilizer use throughout the region. As a homeowner in this region, you find that your water must be treated in order to be safe for drinking.

2. One of the most striking aspects of cities in the former Soviet Union is the poor condition of public places. Streets, parks, libraries, museums, concert halls, and public gathering places of every description are all in very poor condition, revealing years of neglect and lack of maintenance.

Explain this phenomenon in light of the definition of property rights and the transition from socialism to a market economy.

3. Suppose that the marginal benefit associated with corn production is MB = 2.5. The marginal private cost of production is MPC = 2 + 0.1Q, where Q measures bushels of corn produced in thousands. The marginal damages caused by pollution in corn production are given by MD = 0.05Q.

a. Compute the privately optimal output and the socially optimal output.

b. Compute new solutions for an increase in MB to MB = 3. Explain what has happened and why. c. Demonstrate the effects of an increase in MD to MD = 0.075 compared to the solutions in part a.

4. Policy analysts in the Department of Natural Resources have estimated that the marginal benefits from water pollution abatement are given by the function MB Â¼ 0.90 Ã 0.03A, where A is a measure of the abatement intensity. Industry experts have estimated that the marginal cost of abatement activity is MC = 0.30 + 0.09A.

a. Determine the optimal level of abatement activity.

b. Explain what happens when new technology reduces the marginal cost of abatement to MC = 0.25 + 0.06A. 5. Consider the pollution reduction mechanism known as emissions trading. a. What is the economic rationale for permitting emissions trading?

b. If the objective is to minimize the cost of emissions reductions, explain what economic principle should be followed in allocating emissions reductions between two countries.

c. Suppose the marginal cost curves for emissions reductions in countries A and B are MCA = 10 + 0.04qA and MCB = 5 + 0.02qB. What is the most efficient allocation of an emission reduction of q0 between the two countries? (Assume that the emissions reductions of the two countries must add up to the total emissions reduction: q0 = qA = qB.)

PART B

1. Which of the following do you consider pure public goods? Private goods? Why?

a. Wilderness areas

b. Satellite television

c. Medical school education

d. Public television programs

e. Automated teller machine (ATM)

2. Indicate whether each of the following statements is true, false, or uncertain, and justify your answer.

a. Efficient provision of a public good occurs at the level at which each member of society places the same value on the last unit.

b. If a good is nonrival and excludable, it will never be produced by the private sector.

c. A road is nonrival because one personâs use of it does not reduce another personâs use of it.

d. Larger communities tend to consume greater quantities of a nonrival good than smaller communities.

3. Tarzan and Jane live alone in the jungle and have trained Cheetah both to patrol the perimeter of their clearing and to harvest tropical fruits. Cheetah can collect 3 pounds of fruit an hour and currently spends 6 hours patrolling, 8 hours picking, and 10 hours sleeping.

a. What are the public and private goods in this example?

b. If Tarzan and Jane are each currently willing to give up one hour of patrol for 2 pounds of fruit, is the current allocation of Cheetahâs time Pareto efficient? Should he patrol more or less?

4. The aircraft company Airbus receives much of its funding from European governments. Airbus recently decided to build a new 550-seat mega-jetliner, with duty-free shopping courts and restaurants on board. The project has experienced production delays as well as cost overruns, and it now appears that there will be very few buyers. An industry expert says the idea from the start was ânonsenseâ

Is public sector production of aircrafts ever justified?

Explain why it could lead to the apparently ill-advised decision to build the mega-jetliner.

5. Suppose that there are only two fishermen, Zach and Jacob, who fish along a certain coast. They would each benefit if lighthouses were built along the coast where they fish. The marginal cost of building each additional lighthouse is $100. The marginal benefit to Zach of each additional lighthouse is 90 â Q, and the marginal benefit to Jacob is 40 â Q, where Q equals the number of lighthouses.

a. Explain why we might not expect to find the efficient number of lighthouses along this coast.

b. What is the efficient number of lighthouses? What would be the net benefits to Zach and Jacob if the efficient number were provided?

byzantiummanatee604

EC120 Chapter Notes - Chapter 11: Rush Hour, Complementary Good, Abundant Number

EC120 Full Course Notes

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