MICROECONOMICS+CONNECT RMU EDITION
21st Edition
ISBN: 9781264088874
Author: McConnell
Publisher: MCG
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Chapter 13, Problem 1RQ
To determine
Herfindahl index of 10 firms.
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Teletronics reported record profits of $100,000 last year and is on track to exceed those profits this year. Teletronics competes in a very competitive market where many of the firms are merging in an attempt to gain competitive advantages. Currently, the company’s top manager is compensated with a fixed salary that does not include any performance bonuses. Explain why this manager might nonetheless have a strong incentive to maximize the firm’s profits. (LO4, LO5)
11 21. Imagine an N firm oligopoly for "nominally differentiated" goods. That is, each of the N firms produces a product that "looks" different from the products of its competitors, but that "really" isn't any different. However, each firm is able to fool some of the buying public. Specifically, each of the N firms (which are identical and have zero marginal cost of production) has a captive market -consumers who will buy only from that firm. The demand generated by each of these captive markets is given by the demand function Pn A- Xn , where Xn is the amount supplied to this captive market and Pn is the price of the production of firm n. There is also a group of intelligent consumers who realize that the products are really undifferentiated. These…
Based only on the knowledge that the premerger market share of two firms proposing to merge was 30 percent each, an economist working for the Justice Department was able to determine that, if approved, the postmerger HHI would increase by 1,800. How was the economist able to draw this conclusion without knowledge of the other firms’ market shares? From this information, can you devise a general rule explaining how the Herfindahl-Hirschman index is affected when exactly two firms in the market merge?
Chapter 13 Solutions
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- 4. You are the manager of a monopoly, and your demand and cost functions are given by P = 300 − 3Q and C(Q) = 1,500 + 2Q2, respectively. (LO3, LO4) a. What price–quantity combination maximizes your firm’s profits? b. Calculate the maximum profits. c. Is demand elastic, inelastic, or unit elastic at the profit-maximizing price–quantity combination? d. What price–quantity combination maximizes revenue? e. Calculate the maximum revenues. f. Is demand elastic, inelastic, or unit elastic at the revenue-maximizing price–quantity combination? 6. The accompanying diagram shows the demand, marginal revenue, and marginal cost of a monopolist. (LO1, LO3, LO5) a. Determine the profit-maximizing output and price. b. What price and output would prevail if this firm’s product were sold by price-taking firms in a perfectly competitive market? c. Calculate the deadweight loss of this monopoly. 8. The elasticity of demand for a firm’s product is –2.5 and its advertising elasticity of demand is 0.2.…arrow_forward7. You are the manager of a monopolistically competitive firm, and your demand and costfunctions are given by Q = 36 − 4P and C(Q) = 4 + 4Q + Q2. (LO1, LO3, LO5)a. Find the inverse demand function for your firm’s product.arrow_forwardThe two major scooter companies in India, ABC and XYZ, are competing for a fixed market. If both manufacturers make major model changes in a year, then their percentage market share not change. Also, if they both do not make major model changes, their percentage market share remains constant. If ABC makes a major model change and XYZ does not, then ABC is able to take away a% of the market away from XYZ, and if XYZ makes a major model change ABC does not, XYZ is able to take away b% of the market away from ABC. Express this as a 2 x 2 game and solve for the optimal strategy for each of the companies.arrow_forward
- Use the accompanying graph to answer the questions that follow. (LO1, LO2) a. Suppose this monopolist is unregulated. (1) What price will the firm charge to maximize its profits? (2) What is the level of consumer surplus at this price? b. Suppose the firm’s price is regulated at $80. (1) What is the firm’s marginal revenue if it produces 7 units? (2) If the firm is able to cover its variable costs at the regulated price, how much output will the firm produce in the short run to maximize its profits? (3) In the long run, how much output will this firm produce if the price remains regulated at $80?arrow_forwardq52 If you advertise and your rival advertises, you each will earn 14 million in profits. If neither of you advertises, you will each earn 20 million in profits. However, if one of you advertises and the other does not, the firm that advertises will earn 10 million and the non-advertising firm will earn 16 million. If you and your rival plan to be in business for only one year, the Nash equilibrium is a. for each firm to advertise. b. for the other firm to advertise and your firm not to advertise. c. for your firm to advertise and the other not to advertise. d. for neither firm to advertise.arrow_forwardSuppose we have another firm known as the Sanda Corporation which makes a product known as "Delgados". Suppose that its FC=$2,000 and its TC=$5,000 and its AVC=$48. What is the ATC? O $20.50 O $70 O $80 O $100 O Not enough informationarrow_forward
- 9. Suppose Warner Music and Universal Music are in a duopoly and currently limit themselves to 10 new artists per year. One artist sells 2 million songs at $1.25 per song. However, each label is capable of signing 20 artists per year. If one label increases the number of artists to 20 and the other stays the same, the price per song drops to $0.75, and each artist sells 3 million songs. If both labels increase the number of artists to 20, the price per song drops to $0.30, and each artist sells 4 million songs. Explain how revenue payoffs for each scenario are calculated. If this game is played once, how many artists will each producer sign, and what will be the price of a song? If this game is played every year, how many artists will each producer sign, and what will be the price of a song?arrow_forwardAs the manager of a monopoly, you face potential government regulation. Your inversedemand is P = 40 − 2Q, and your costs are C(Q) = 8Q. (LO1, LO2, LO6)a. Determine the monopoly price and output.arrow_forward6. The accompanying diagram shows the demand, marginal revenue, and marginal cost of a monopolist. (LO1, LO3, LO5) a. Determine the profit-maximizing output and price. b. What price and output would prevail if this firm’s product were sold by price-taking firms in a perfectly competitive market? c. Calculate the deadweight loss of this monopoly. 8. The elasticity of demand for a firm’s product is –2.5 and its advertising elasticity of demand is 0.2. (LO8) a. Determine the firm’s optimal advertising-to-sales ratio. b. If the firm’s revenues are $40,000, what is its profit-maximizing level of advertising?arrow_forward
- Newfoundland’s fishing industry has recently declined sharply due to overfish- ing, even though fishing companies were supposedly bound by a quota agree- ment. If all fishermen had abided by the agreement, yields could have been maintained at high levels. LO4 Model this situation as a prisoner’s dilemma in which the players are Company A and Company B and the strategies are to keep the quota and break the quota. Include appropriate payoffs in the matrix. Explain why overfishing is inevitable in the absence of effective enforcement of the quota agreement. Provide another environmental example of a prisoner’s dilemma. In many potential prisoner’s dilemmas, a way out of the dilemma for a would-be cooperator is to make reliable character judgments about the trustworthiness of potential partners. Explain why this solution is not avail- able in many situations involving degradation of the environment.arrow_forward3. Describe some interaction your company has with another entity (firms producing complementary or substitute products, upstream sup- pliers, or downstream customers), or between internal divisions within your firm that can be described as a sequential or simultaneous game. Diagram the strategies, players, and compute payoffs as best you can. Compute the Nash equilibria. What can you do to change the rules of the game to your advantage? Compute the profit consequences of your advice.arrow_forwardSuppose that a small town has seven burger shops whose respective shares of the local hamburger market are (as percentages of all hamburgers sold): 23 percent, 22 percent, 18 percent, 12 percent, 11 percent, 8 percent, and 6 percent. What is the four-firm concentration ratio of the hamburger industry in this town? What is the Herfindahl index for the hamburger industry in this town? If the top three sellers combined to form a single firm, what would happen to the four-firm concentration ratio and to the Herfindahl indexarrow_forward
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