A) product-variety externality, which harms producers.
B) product-variety externality, which benefits producers.
C) business-stealing externality, which harms producers.
D) business-stealing externality, which benefits producers.
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Multiple Choice
A) there are barriers to entry.
B) all firms can eventually earn economic profits.
C) each of the sellers offers a somewhat different product.
D) strategic interactions between firms are important.
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Multiple Choice
A) approximately 48%
B) approximately 54%
C) approximately 60%
D) approximately 66%
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Multiple Choice
A) perfect competition
B) monopolistic competition
C) monopoly
D) Both a and b are correct.
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Multiple Choice
A) (i) and (ii) only
B) (ii) and (iii) only
C) (ii) only
D) (i) , (ii) , and (iii)
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Multiple Choice
A) New firms will enter the market and profits for firms in the market will fall.
B) New firms will enter the market and profits for firms in the market will rise.
C) Firms will leave the market and profits for firms that remain in the market will rise.
D) Firms will leave the market and profits for firms that remain in the market will fall.
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Multiple Choice
A) restaurants and furniture.
B) wheat and corn.
C) postage stamps and wooden pencils.
D) All of the above are correct.
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Multiple Choice
A) P = 0
B) P = 5
C) P = 10
D) P = 20
Correct Answer
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Multiple Choice
A) quantity demanded falls to zero.
B) quantity demanded declines but not to zero.
C) the market supply curve shifts outward.
D) quantity demanded remains constant.
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True/False
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Multiple Choice
A) about 13%
B) about 35%
C) about 45%
D) about 63%
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Multiple Choice
A) at 100 units of output
B) somewhere between 100 and 133.33 units of output
C) at 133.33 units of output
D) at 154.92 units of output
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Multiple Choice
A) panel a
B) panel b
C) panel c
D) panel d
Correct Answer
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Multiple Choice
A) restrict advertising in order to enhance competition on the basis of price.
B) restrict advertising in order to reduce competition on the basis of price.
C) encourage advertising in order to reduce competition on the basis of price.
D) encourage advertising in order to enhance competition on the basis of price.
Correct Answer
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Multiple Choice
A) consumers are not confused by conflicting signals.
B) firms are generally less profitable.
C) markets are less efficient.
D) consumers make better choices.
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Multiple Choice
A) brand loyalty and market power in the eyeglass market was likely to be more pervasive in states that allowed advertising.
B) eyeglass sales were more profitable in states that allowed advertising.
C) optometrists would not be supportive of advertising restrictions.
D) optometrists would enthusiastically endorse advertising restrictions.
Correct Answer
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Multiple Choice
A) Firms in monopolistic competition and monopoly can earn economic profits in both the short run and the long run.
B) Both perfectly competitive and monopolistically competitive firms charge a price equal to marginal cost.
C) Firms in perfect competition, monopolistic competition, and monopoly maximize profits by producing where marginal revenue equals marginal cost.
D) Both perfectly competitive and monopolistically competitive firms produce the welfare-maximizing level of output.
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Multiple Choice
A) not in long-run equilibrium.
B) in long-run equilibrium.
C) producing its efficient scale of output.
D) earning a positive economic profit.
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Multiple Choice
A) both Keebleco and Nabiscer have incentives to spend large amounts of money on advertising their crackers.
B) Keebleco has an incentive to spend a large amount of money on advertising its crackers, but Nabiscer does not.
C) Nabiscer has an incentive to spend a large amount of money on advertising its crackers, but Keebleco does not.
D) neither Keebleco nor Nabiscer has an incentive to spend a large amount of money on advertising their crackers.
Correct Answer
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Multiple Choice
A) minimized average total cost.
B) chosen to produce where demand is unitary elastic.
C) produced the efficient scale of output.
D) chosen a quantity of output where average revenue equals average total cost.
Correct Answer
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