Exam 12: Firms in Perfectly Competitive Markets
Exam 1: Economics: Foundations and Models233 Questions
Exam 2: Trade-Offs, comparative Advantage, and the Market System259 Questions
Exam 3: Where Prices Come From: the Interaction of Demand and Supply242 Questions
Exam 4: Economic Efficiency, government Price Setting, and Taxes208 Questions
Exam 5: Externalities, environmental Policy, and Public Goods267 Questions
Exam 6: Elasticity: The Responsiveness of Demand and Supply295 Questions
Exam 7: The Economics of Health Care169 Questions
Exam 8: Firms, the Stock Market, and Corporate Governance278 Questions
Exam 9: Comparative Advantage and the Gains From International Trade189 Questions
Exam 10: Consumer Choice and Behavioral Economics302 Questions
Exam 11: Technology, production, and Costs330 Questions
Exam 12: Firms in Perfectly Competitive Markets298 Questions
Exam 13: Monopolistic Competition: the Competitive Model in a More Realistic Setting278 Questions
Exam 14: Oligopoly: Firms in Less Competitive Markets262 Questions
Exam 15: Monopoly and Antitrust Policy271 Questions
Exam 16: Pricing Strategy263 Questions
Exam 17: The Markets for Labor and Other Factors of Production286 Questions
Exam 18: Public Choice,taxes,and the Distribution of Income258 Questions
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Figure 12-10
-Refer to Figure 12-10.Total revenue at the profit-maximizing level of output is
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(Multiple Choice)
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D
Using two graphs,illustrate how a positive technological change in the market for notebook computers could eliminate short-run economic profit for a firm in that market.On the first graph,use a supply and demand graph to illustrate the positive technological change.On the second graph,use demand,ATC,MC and MR curves to illustrate the elimination of economic profit resulting from the positive technological change.Explain what is taking place in each graph.
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(Essay)
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Correct Answer:
On the first graph,supply shifts to the right as a result of the positive technological change,lowering the equilibrium price and increasing the equilibrium quantity.On the second graph,the lower price shifts the demand curve down to where it intersects the ATC curve at its minimum point,eliminating economic profit.

Figure 12-6
Figure 12-6 shows the demand, marginal cost (MC) and average total cost (ATC) curves for Jason's House of Apples.
-Refer to Figure 12-6.If Jason maximizes his profit he will produce the output rate indicated by point ________ and his average profit will equal ________.
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(Multiple Choice)
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Correct Answer:
A
Assume the market for organically-grown produce is perfectly competitive.All else equal,as farmers find it less profitable to produce and sell organic produce in this market
(Multiple Choice)
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Figure 12-10
-Refer to Figure 12-10.At the profit-maximizing output level,the firm earns
(Multiple Choice)
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Figure 12-16
-Refer to Figure 12-16.Which panel best represents the perfectly competitive organic produce market in which some firms are experiencing short-run losses,and consumers are displaying an increased preference for organic produce?
(Multiple Choice)
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Figure 12-11
-Refer to Figure 12-11.Suppose the prevailing price is $20 and the firm is currently producing 1,350 units.In the long-run equilibrium
(Multiple Choice)
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What is meant by allocative efficiency? How does a perfectly competitive firm achieve allocative efficiency?
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Table 12-2
Table 12-2 lists the various pounds (lbs.) of apples that Margie Stattler can sell. Assume that Margie operates in a perfectly competitive market.
-Refer to Table 12-2.What is Margie's total revenue if she sells 250 pounds of apples?
(Multiple Choice)
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What characteristic of a competitive market has made the "long run pretty short" in the market for iPhone applications?
(Multiple Choice)
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Figure 12-6
Figure 12-6 shows the demand, marginal cost (MC) and average total cost (ATC) curves for Jason's House of Apples.
-Refer to Figure 12-6.Which of the following statements is true?
(Multiple Choice)
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Ted's Pancake Kitchen suffers a short-run loss.When should Ted decide to shut down rather than continue to produce?
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Fill in the columns in the following table and use the values in the table to determine the profit-maximizing level of output.

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If a perfectly competitive apple farm's marginal revenue exceeds the marginal cost of the last bushel of apples sold,what should the farm do to maximize its profit?
(Multiple Choice)
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Figure 12-20
-Refer to Figure 12-20.If the market price is P1,what is the allocatively efficient output level?
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Assume that a perfectly competitive market is in long-run equilibrium.Suppose as a result of a health hazard associated with the industry's product,demand decreases drastically.What is the immediate result of this event?
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A perfectly competitive firm will maximize its profit at the rate of output where the vertical distance between its total revenue and total cost is the largest.This is the same rate of output where
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In the short run,a firm that incurs losses might choose to produce rather than shut down if the amount of its revenue is less than its fixed cost.
(True/False)
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If a typical firm in a perfectly competitive industry is incurring losses,then
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