# The invisible hand theorem comes from

ECO 365/ECO365 FINAL EXAM (LATEST) 100%
1. Macroeconomics is
a. the study of individual choice and how that choice is influenced by economic forces
b. the study of the pricing policies of firms and the purchasing decisions of households
c. the study of aggregate economic relationships
d. an analysis of economic reality that proceeds from the parts to the whole

2. The invisible hand theorem comes from
a. microeconomics
b. macroeconomics
c. sociology
d. political science

3. The law of demand states that the quantity demanded of a good is inversely related to the price of that good. Therefore, as the price of a good goes
a. up, the quantity demanded goes up
b. up, the quantity demanded goes down
c. down, the quantity demanded goes down
d. down, the quantity demanded stays the same

4. Which of the following situations best demonstrates the law of demand?
a. Moviegoers react to an increase in the price of a ticket by seeing fewer movies per year.
b. Moviegoers see fewer movies per year due to an overall decrease in the quality of newly released motion pictures.
c. A drought causes a decrease in the availability of pumpkins, resulting in fewer jack-o-lanterns displayed on Halloween.
d. An increase in the number of people writing economics textbooks results in a decrease in average textbook prices.

5. If quantity demanded does not change when the price changes, the demand
a. is elastic
b. is inelastic
c. has unit elasticity
d. is perfectly inelastic

6. High gasoline prices hit commuters who live far from their jobs in areas with little public transportation hard. With few alternatives, they have to bear the higher cost. Based on this information, how would you characterize demand for gasoline by these commuters?
a. Gasoline is a luxury good.
b. Gasoline is an inferior good.
c. Demand for gasoline is elastic.
d. Demand for gasoline is inelastic.

7. Mr. Woodard has found it necessary to hire more workers. However, he has observed that doubling the number of workers has less than doubled his output. What is the likely explanation?
a. The law of diminishing marginal utility
b. The law of diminishing marginal productivity
c. The law of supply
d. The law of demand

8. Marginal product eventually
a. declines because some inputs are fixed
b. increases because some inputs are fixed
c. declines because some inputs are variable
d. increases because some inputs are variable

9. Suppose you operate a factory that produces gadgets. Your current output is 1,000 gadgets. If your fixed cost is \$10,000 and your total cost is \$50,000, then the
a. average total cost of production is \$500
b. average variable cost of production is \$40
c. average variable cost of production is \$50
d. marginal cost of production is \$40,000

10. The average variable cost curve is a mirror image of the
a. total product curve
b. marginal product curve
c. average product curve
d. marginal cost curve

11. Suppose wages and employment decrease. These changes were most likely caused by a(n)
a. decline in immigration
b. increase in emigration
c. increase in the working age population
d. decline in business activity in the economy

12. The incentive effect refers to how much a person will change his or her
a. hours worked in response to a change in the wage rate
b. wage rate in response to a change in productivity
c. quantity demanded of a taxed good in response to a change in the tax rate
d. wage rate in response to a change in the tax rate on earnings

13. Rachel left her job as a graphic artist, where she earned \$42,000 per year, to open her own graphic arts firm. Her explicit costs for the new business include
a. only the expenses incurred for office space, equipment, and supplies
b. only her foregone salary of \$42,000 per year
c. both the expenses incurred for office space, equipment, and supplies, and her foregone salary of \$42,000 per year
d. neither the expenses incurred for office space, equipment, and supplies, nor her foregone salary of \$42,000 per year

14. If your company cell phone bill is either \$40 when you use up to 300 minutes per month or \$80 when you use between 300 to 400 minutes per month, the marginal cost of the 301st minute is
a. \$0.13
b. \$0.27
c. \$40
d. \$80

15. A market structure in which one firm makes up the entire market is
a. a monopoly
b. perfect competition
c. an oligopoly
d. monopolistic competition

16. There are many restaurants in Raleigh, North Carolina, each one offering food and services that differ from those of its competitors. There is also the free entry of sellers into the market, and each seller serves a small fraction of the total number of meals served each day. The restaurant industry in Raleigh is best categorized as
a. an oligopoly
b. monopolistically competitive
c. a pure monopoly
d. perfectly competitive
17. The difference between a monopolist and a monopolistic competitor is that
a. a monopolist equates marginal revenue and marginal cost while a monopolistic competitor equates price and marginal cost
b. the average total cost curve of a monopolistic competitor is tangent to the demand curve in long-run equilibrium, but the average total cost curve of a monopolist can be in a position below the price in long-run equilibrium
c. the average total cost curve of a monopolist is tangent to the demand curve in long-run equilibrium, but the average total cost curve of a monopolistic competitor can be in a position below the price in long-run equilibrium
d. the average total cost curve of a monopolist is tangent to the demand curve in long-run equilibrium, but the average total cost curve of a monopolistic competitor can be in a position above the price in long-run equilibrium

18. If a perfectly competitive firm finds that price is less than the average variable cost, it should
a. not adjust output if marginal cost equals price
b. shut down immediately
c. increase output until price equals marginal cost
d. decrease output until price equals marginal cost

19. A perfectly competitive firm facing a price of \$10 decides to produce 100 widgets. If its marginal cost of producing the last widget is \$12 and it seeks to maximize profit, the firm should
a. produce more widgets
b. produce fewer widgets
c. continue producing 100 widgets
d. shut down

20. If a firm has a monopoly over the sale of photographic paper and seeks to maximize profits, it
a. adjusts the price of the product until demand becomes perfectly inelastic
b. will set the price of the product equal to the marginal cost of production
c. will set the price of the product equal to the average total cost of production
d. will set the price of the product so its marginal revenue equals its marginal cost

21. The best example of a positive externality is
a. roller coaster rides
b. pollution
c. alcoholic beverages
d. education

22. The cost of running an electrical utility includes costs for fuel, labor, and capital. In addition, there are sometimes costs associated with pollution from the utility, such as increased health care costs for people living near the utility. To an economist, the costs associated with the pollution resulting from additional electricity are
a. marginal private costs
b. marginal social costs
c. the difference between marginal social costs and marginal private costs
d. the sum of marginal social costs and marginal private costs

23. When Turner Network, producer and owner of movies, bought a local cable company, it was an example of a
a. horizontal merger
b. vertical merger
c. conglomerate merger
d. diagonal merger

24. KMart® acquired Sears® so both companies could better compete with Walmart®. This acquisition is an example of a
a. vertical merger
b. conglomerate merger
c. horizontal merger
d. hostile takeover

25. When government imposes a per unit tax on a product, the net price producers receive for the product after all taxes typically
a. increases by the amount of the per unit tax
b. increases by less than the amount of the per unit tax
c. decreases by the amount of the per unit tax
d. decreases by less than the amount of the per unit tax

26. In 1997, the federal government reinstated a 10% excise tax on airline tickets. The industry tried to pass on the full 10% ticket tax to consumers, but was only able to boost the price per plane ticket by 4%. From this, you can conclude that the
a. demand for airline tickets is perfectly inelastic
b. supply of airline tickets is perfectly inelastic
c. demand for airline tickets is price elastic
d. supply elasticity of airline tickets is less than infinity

27. Countries can expect to gain from international trade as long as they
a. keep production diversified
b. specialize according to their comparative advantage
c. produce only those goods for which they have a relatively high opportunity cost
d. use trade restrictions to reduce competition for domestic producers

28. Technological changes in telecommunications have
a. reduced the importance of services in the world economy
b. allowed increased foreign trade in many services
c. reduced the need for foreign trade in many services
d. profoundly affected trade in manufactured goods with little effect on trade in services

29. In the US, the outsourcing of service jobs, such as those in call centers, has become a political issue. How do economists typically view outsourcing?
a. It helps both countries in the long run.
b. It hurts both countries, because the US loses jobs and the employees of the call center are exploited with low wages.
c. It helps the US, but hurts the country with the low-cost labor.
d. It helps the country getting the jobs, but hurts the US.

30. When a U.S. company establishes a call center in India that answers its customer service calls, the US is
a. outsourcing, a form of importing services
b. outsourcing, a form of exporting services
c. insourcing, a form of importing services
d. insourcing, a form of exporting services

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