Exam 2 Flashcards

1
Q
Firms in a monopolistically competitive market face \_\_\_\_\_\_\_\_ demand curves and earn \_\_\_\_\_\_\_\_
economic profits in the long run.
A) downward sloping; zero 
B) downward sloping; negative
C) horizontal; 
zero D) horizontal; negative
A

A) downward sloping; zero

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2
Q
A monopoly advertises
A) to encourage entry by other firms. 
B) to decrease costs.
C) to increase demand. 
D) to reduce deadweight loss.
A

C) to increase demand.

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3
Q

Assuming a homogeneous product, the Bertrand duopoly equilibrium price is
A) less than the Cournot equilibrium price.
B) equal to the monopoly price.
C) greater than the Cournot equilibrium price.
D) the same as the Cournot equilibrium price.

A

A) less than the Cournot equilibrium price.

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4
Q

Consumers are better off with pricing in the following order: 1)________; 2)________;
3)________. (The most prefereed goes first.)
A) single-price monopoly; perfectly competitive market; perfect price discrimination
B) perfectly competitive market; perfect price discrimination; single-price monopoly
C) perfectly competitive market; single-price monopoly; perfect price discrimination
D) perfect price discrimination; perfectly competitive market; single-price monopoly

A

C) perfectly competitive market; single-price monopoly; perfect price discrimination

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5
Q

Consumer surplus
A) is the difference between the maximum amount a consumer would willingly pay for a
good and the price actually paid.
B) equals zero in the long run.
C) is the extra money a consumer pays above the minimum necessary price for the producer to
produce it.
D) is the difference between what a consumer pays for a good and the producer’s cost.

A

A) is the difference between the maximum amount a consumer would willingly pay for a
good and the price actually paid.

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6
Q

One difference between a monopoly and a competitive firm is that
A) a monopoly is a price taker.
B) a monopoly maximizes profit by setting marginal revenue equal to marginal cost.
C) a monopoly faces a downward sloping demand curve.
D) a monopoly must worry about the free entry of competitors.

A

C) a monopoly faces a downward sloping demand curve.

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7
Q

A market failure occurs
A) when price equals the marginal cost of the last unit produced.
B) when deadweight loss is minimized.
C) whenever a firm shuts down.
D) when there is a non-optimal allocation that leads to an inefficient market.

A

D) when there is a non-optimal allocation that leads to an inefficient market.

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8
Q

(I allowed for 2 different correct answers on this problem.) If market price is greater than the
minimum of AVC but below the minimum of AC, then
A) economic profit is zero.
B) revenue covers variable costs and some of the fixed costs and profit is positive.
C) revenue covers variable costs and some of the fixed costs, although profit is negative.
D) the firm will shut down.

A

C) revenue covers variable costs and some of the fixed costs, although profit is negative.
D) the firm will shut down.

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9
Q

If two identifiable markets differ with respect to their price elasticity of demand and resale is
impossible, a firm with market power will
A) set a lower price in the market that is more price elastic.
B) set a higher price in the market that is more price elastic.
C) set price equal to marginal cost in both markets.
D) set price equal to variable cost in both markets.

A

A) set a lower price in the market that is more price elastic.

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10
Q

In the simplest version of the Cournot model, we assume the firms
A) are not in a Nash equilibrium.
B) set quantities independently and sequentially.
C) set quantities independently and simultaneously.
D) set price independently and simultaneously.

A

C) set quantities independently and simultaneously.

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11
Q

If ATC < p where MR = MC
A) firms earn negative profits and existing firms will leave.
B) firms earn positive profits and new firms will enter.
C) firms earn zero profits and new firms will not enter.
D) None of the above.

A

B) firms earn positive profits and new firms will enter.

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12
Q

In a sealed-bid, second-price auction, you should bid
A) a small amount less than you expect any other player to bid.
B) your reservation value.
C) the known common value of the good.
D) your estimate of what others value the good at.

A

B) your reservation value.

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13
Q
Which is an important aspect of perfectly competitive markets that leads to long run equilibrium?
A) perfect information 
B) homogeneous products
C) freedom of entry and exit
D) price taking behavior
A

C) freedom of entry and exit

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14
Q

A consumer’s reservation price is the
A) minimum amount she will pay for a good or service.
B) price that maximizes her surplus.
C) maximum amount she will pay for a good or service.
D) maximum amount she would accept in order to resell a good or service.

A

C) maximum amount she will pay for a good or service.

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15
Q

If a market is controlled by a perfect-price-discriminating monopoly, then
A) consumer surplus is the same as under perfect competition.
B) output is less than that of a single-price monopoly.
C) there is no consumer surplus.
D) a deadweight loss is generated.

A

C) there is no consumer surplus.

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16
Q

Which of the following is NOT a characteristics of a perfectly competitive market?
A) There are only one or two sellers.
B) There are zero transaction costs.
C) There is free entry and exit.
D) Buyers and sellers have complete information.

A

A) There are only one or two sellers.

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17
Q

The term prisoners’ dilemma refers to a game in which
A) there are no Nash equilibria.
B) there are no dominant strategies.
C) the payoff from both players playing their dominant strategies is the same for each player.
D) the payoff from both players playing their dominant strategies is not the highest payoff
possible for both players.

A

D) the payoff from both players playing their dominant strategies is not the highest payoff
possible for both players.

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18
Q

With identical firms, constant input prices, and all the other characteristics of a competitive
market
A) a shift in demand will change the long-run equilibrium price and quantity.
B) a shift in demand has no effect on the long-run average cost, resulting in a change in
equilibrium quantity but not price.
C) a shift in demand has no effect on the long-run average cost, resulting in a change in
equilibrium price but not quantity.
D) a shift in demand has no effect on the long-run average cost and so there is no change in
equilibrium price and quantity.

A

B) a shift in demand has no effect on the long-run average cost, resulting in a change in
equilibrium quantity but not price.

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19
Q

A firm that has market power
A) can charge whatever it wants for its product and make a profit.
B) always has positive economic profits.
C) does not lose sales when increasing price.
D) can charge a price above marginal cost.

A

D) can charge a price above marginal cost.

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20
Q

A coordination game
A) always has no Nash equilibria.
B) is a game with multiple Nash equilibria where players can credibly coordinate to select one
of the equilibria.
C) cannot be solved with cheap talk.
D) always has one Nash equilibrium and no dominated strategies.

A

B) is a game with multiple Nash equilibria where players can credibly coordinate to select one of the equilibria.

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21
Q

All firms can increase profits using price discrimination.
A) false, because consumers aren’t forced to buy a producer’s products
B) false, because some firms are in competitive markets
C) true, because all market demand curves are downward sloping
D) true, because all firms can sell different versions of a product that are just right for an
individual consumer

A

B) false, because some firms are in competitive markets

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22
Q
A cartel is a group of firms that attempts to
A) maximize joint profit. 
B) behave independently.
C) increase consumer surplus. 
D) maximize joint revenue.
A

A) maximize joint profit.

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23
Q
If a firm is a price taker, then its marginal revenue will always equal
A) zero. 
B) total cost. 
C) one. 
D) price.
A

D) price.

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24
Q

In the long run, firms in a competitive market
A) shut down because profit goes to zero.
B) are not profit maximizing.
C) lose money.
D) earn zero economic profit.

A

D) earn zero economic profit.

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25
Q
Two identical firms that share a market and produce identical products will find which of the following
market outcomes LEAST desirable?
A) Bertrand Oligopoly
B) Cournot Oligopoly
C) Cartel
D) All are equally preferable.
A

A) Bertrand Oligopoly

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26
Q

A monopoly shuts down in the short-run when
A) the price is below its average variable costs.
B) never, because it can raise its prices as high as necessary to keep operating and maximize profits.
C) the price is above its average (total) costs.
D) the price is below its average fixed costs.

A

A) the price is below its average variable costs.

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27
Q

Assuming identical products, the Bertrand equilibrium price is
A) independent of the firm’s marginal costs.
B) independent of the number of firms.
C) equal to the Cournot equilibrium price.
D) equal to the monopoly price.

A

B) independent of the number of firms.

28
Q

In monopolistic competition, if AC < p where MR = MC
A) firms earn positive profits and new firms will enter.
B) firms earn zero profits and new firms will not enter.
C) firms earn negative profits and existing firms will leave.
D) None of the above.

A

A) firms earn positive profits and new firms will enter.

29
Q

The winner’s curse occurs when
A) the winner buys something he didn’t need.
B) bidders “shade” their bids.
C) the winning bid is higher than the good’s common value.
D) the winning bid is higher than the private value of the good.

A

C) the winning bid is higher than the good’s common value.

30
Q

In a sealed-bid, second-price auction, you should bid
A) the common value of the good.
B) one dollar more than your estimate of what the second-highest bid will be.
C) your private valuation of the item.
D) your estimate of what others value the good at.

A

C) your private valuation of the item.

31
Q

The term prisoners’ dilemma refers to a game in which
A) the payoff from both players playing their dominant strategies is different for each player.
B) there are no dominant strategies.
C) the payoff from both players playing their dominant strategies is not as high as the payoff if they
cooperated.
D) there are no Nash equilibria.

A

C) the payoff from both players playing their dominant strategies is not as high as the payoff if they
cooperated.

32
Q

When a firm has a monopoly in a market and also perfectly price discriminates, total welfare
A) is minimized.
B) is maximized.
C) is lower than it would have been if it couldn’t price discriminate.
D) is higher than in a perfectly competitive market.

A

B) is maximized.

33
Q

When firms price discriminate they
A) sell to new consumers that would not have bought at the profit-maximizing uniform price.
B) sell to fewer consumers than they would have at the profit-maximizing uniform price.
C) reduce their producer surplus from what it would have been if they has charged the
profit-maximizing uniform price.
D) None of the above.

A

A) sell to new consumers that would not have bought at the profit-maximizing uniform price.

34
Q

A firm will increase its spending on advertising until
A) the marginal benefit of advertising is zero.
B) it has zero net profits.
C) the marginal benefit of advertising equals the marginal cost of advertising.
D) it has monopolized the market.

A

C) the marginal benefit of advertising equals the marginal cost of advertising.

35
Q

The competitive firm’s short-run supply curve is equal to
A) the portion of its marginal cost curve that lies above AFC.
B) the portion of its marginal cost curve that lies above AVC.
C) the portion of its marginal cost curve that lies above AC.
D) its marginal cost curve.

A

B) the portion of its marginal cost curve that lies above AVC.

36
Q

If a firm operates in a perfectly competitive market, then it will most likely
A) advertise its product on television.
B) have a difficult time obtaining information about the market price.
C) have an easy time keeping other firms out of the market.
D) take the price of its product as determined by the market.

A

D) take the price of its product as determined by the market.

37
Q

Which is true of a typical firm in a cartel?
A) The firm has no incentive to cheat.
B) If it alone cheat, it is better off; if everyone cheats, it is worse off.
C) If everyone cheats, the firm is better off, and so is everyone else in the cartel.
D) If others are planning to cheat, it will do best for itself by deciding not to cheat.

A

B) If it alone cheat, it is better off; if everyone cheats, it is worse off.

38
Q

A monopoly will not be able to perfectly price discriminate if
A) demand is inelastic.
B) resale is impossible.
C) obtaining information about each buyer’s reservation price is too costly.
D) demand is elastic.

A

C) obtaining information about each buyer’s reservation price is too costly.

39
Q

A Nash equilibrium occurs when
A) oligopolists cooperate with each other in a static (one-shot) game.
B) players choose their best strategy given the strategies chosen by others.
C) the efficient allocation of resources is achieved by setting marginal revenue equal to marginal cost.
D) a monopolist is forced to produce the efficient level of output.

A

B) players choose their best strategy given the strategies chosen by others.

40
Q
In the long run a monopolistic competitor
A) set MR = MC.
B) sets P > MC.
C) produces where P = AC.
D) All of the above.
A

D) All of the above.

41
Q
A market failure occurs
A) when a firm shuts down.
B) when there is a non-optimal allocation that leads to an inefficient market.
C) when price equals marginal cost.
D) when deadweight loss is minimized.
A

B) when there is a non-optimal allocation that leads to an inefficient market.

42
Q

With identical firms, constant input prices, and all the other characteristics of a competitive market
A) a shift in demand has no effect on the long-run average cost, resulting in change in equilibrium
quantity but not price.
B) a shift in demand has no effect on the long-run average cost, resulting in change in equilibrium price
but not quantity.
C) a shift in demand has no effect on the long-run average cost and so there is no change in equilibrium
price and quantity.
D) a shift in demand will change the equilibrium price and quantity.

A

A) a shift in demand has no effect on the long-run average cost, resulting in change in equilibrium
quantity but not price.

43
Q

Without price discrimination, a firm
A) cannot maximize profit for a single-price monopoly.
B) does not get any producer surplus, with all of the surplus going to consumers.
C) has no market power.
D) faces a tradeoff when pricing a good that has customers with different willingness to
pay.

A

D) faces a tradeoff when pricing a good that has customers with different willingness to
pay.

44
Q

The winner’s curse occurs when
A) the winner buys something he didn’t need.
B) the winning bid is higher than the private value of the good.
C) bidders “shade” their bids.
D) the winning bid is higher than the good’s common value

A

D) the winning bid is higher than the good’s common value

45
Q

By using perfect price discrimination instead of a single price, a monopoly
A) decreases total welfare.
B) captures all consumer surplus.
C) creates deadweight loss. D) increases market inefficiency.

A

B) captures all consumer surplus.

46
Q

In a Bertrand model with identical products
A) price is the same as in a competitive market equilibrium.
B) price and quantity are the same as in the Cournot model.
C) price and quantity are the same as in a monopoly.
D) None of the above.

A

A) price is the same as in a competitive market equilibrium.

47
Q

High transaction costs and imperfect information would prevent price-taking behavior
because they
A) discourage customers from buying from rival firms.
B) discourage other firms from entering the market.
C) encourage customers to shop at many retailers.
D) enables firms to enter the market without being detected.

A

A) discourage customers from buying from rival firms.

48
Q

If a firm operates in a perfectly competitive market, then it will most likely
A) take the price of its product as determined by the market.
B) have a difficult time obtaining information about the market price.
C) advertise its product on television.
D) have an easy time keeping other firms out of the market.

A

A) take the price of its product as determined by the market.

49
Q

Nonlinear price discrimination
A) is where the firm sets a single price for a product.
B) sets the price consumers pay based on quantity purchased.
C) eliminates deadweight loss.
D) is used in situations where consumers have no reservation prices.

A

B) sets the price consumers pay based on quantity purchased.

50
Q
A firm should always shut down if its revenue is
A) less than its avoidable costs. 
B) increasing.
C) less than its average fixed costs. 
D) less than its total costs.
A

A) less than its avoidable costs.

51
Q

A monopoly will NOT be able to perfectly price discriminate if
A) each consumer does not reveal her reservation price.
B) the firm’s marginal cost curve is upward sloping.
C) demand is very elastic.
D) All of the above.

A

A) each consumer does not reveal her reservation price.

52
Q

Why does differentiating its product allow an oligopoly to charge a higher price? When an
oligopoly firm differentiates its product, it
A) makes demand less elastic.
B) makes supply more elastic.
C) prevents new firms from entering its industry.
D) reduces the average cost of production.

A

A) makes demand less elastic.

53
Q
A market failure occurs when
A) deadweight loss is maximized.
B) a firm shuts down.
C) there is a non-optimal allocation that leads to an inefficient market.
D) price equals marginal cost.
A

C) there is a non-optimal allocation that leads to an inefficient market.

54
Q

A dominant strategy
A) only exists when the game is limited to two players.
B) maximizes the joint profit of the players in the game.
C) is the player’s best response to all possible strategies of the other player.
D) cannot exist when there is a Nash equilibrium.

A

C) is the player’s best response to all possible strategies of the other player.

55
Q

A firm is a natural monopoly if
A) its marginal revenue is increasing faster than average costs.
B) one firm can produce the total output of the market at lower cost than two or more
firms could.
C) it has no fixed costs.
D) its profit does not increase with output.

A

B) one firm can produce the total output of the market at lower cost than two or more
firms could.

56
Q

Consumer surplus
A) is the difference between what a consumer pays for a good and the producer’s cost.
B) is the difference between what a consumer would willingly pay for a good and the price actually paid.
C) equals zero in the long run.
D) is the extra money a consumer pays above the minimum necessary price for the
producer to produce it.

A

B) is the difference between what a consumer would willingly pay for a good and the price actually paid.

57
Q
A merger between two firms that produce identical goods would be called
A) a vertical merger. 
B) a Bertrand merger.
C) a horizontal merger. 
D) a duopoly.
A

C) a horizontal merger.

58
Q
Firms in a monopolistically competitive market face \_\_\_\_\_\_\_\_ demand curves and earn \_\_\_\_\_\_\_\_
economic profits in the long run.
A) horizontal; zero 
B) downward sloping; positive
C) downward sloping; zero 
D) horizontal; negative
A

C) downward sloping; zero

59
Q

In a sealed-bid, second-price auction, you should bid
A) your highest value.
B) one dollar more than your estimate of what the second-highest bid will be.
C) the common value of the good.
D) your estimate of what others value the good at.

A

A) your highest value.

60
Q

The term prisoners’ dilemma refers to a game in which
A) there are no dominant strategies.
B) there are no Nash equilibria.
C) the payoff from both players playing their dominant strategies is not the highest payoff
possible.
D) the payoff from both players playing their dominant strategies is the same for each
player.

A

C) the payoff from both players playing their dominant strategies is not the highest payoff possible.

61
Q

In the long run, profits will equal zero in a competitive market because of
A) constant returns to scale.
B) the availability of information.
C) free entry and exit.
D) identical products being produced by all firms.

A

C) free entry and exit.

62
Q
One type of auction ends with only a single bid being made. Which type of auction ends
dramatically with the first bid?
A) First-price Sealed Bid 
B) Second-price Sealed Bid
C) English Auction 
D) Dutch Auction
A

D) Dutch Auction

63
Q

One difference between a monopoly and a competitive firm is that
A) a monopoly is a price taker.
B) a monopoly maximizes profit by setting marginal revenue equal to marginal cost.
C) a monopoly faces a downward sloping demand curve.
D) None of the above.

A

C) a monopoly faces a downward sloping demand curve.

64
Q

As other firms enter a monopoly’s market, the monopoly’s market power
A) declines.
B) increases.
C) is unaffected.
D) increases according to the Lerner Index but decreases according to the price/marginal
cost ratio.

A

A) declines.

65
Q

A firm will increase its spending on advertising until
A) the marginal benefit of advertising equals the marginal cost of advertising.
B) the marginal benefit of advertising is zero.
C) it has deterred all future entry.
D) it has encouraged another firm to enter the market.

A

A) the marginal benefit of advertising equals the marginal cost of advertising.

66
Q

Which of the following conditions can help prolong the life of a cartel?
A) The cartel has no ability to punish members who cheat on the cartel.
B) There are only a few firms in the market and they all belong to the cartel.
C) It is difficult to know what price any cartel member is actually charging.
D) There are many firms in the market that are not members of the cartel.

A

B) There are only a few firms in the market and they all belong to the cartel.