Suppose thata small town has seven burger shops whose respective shares of the local hamburger market are (as percentages of all hamburgers sold): 26 percent, 24 percent, 20 percent, 12 percent, 9 percent, 6 percent, and 3 percent. Instructions: Enter your answers as a whole number. a. What is the four-firm concentration ratio of the hamburger industry in this town? percent b. What is the Herfindahl index for the hamburger industry in this town? c. If the top three sellers combine to form a single firm, what would happen to the four-firm concentration ratio and to the Herfindahl index? Four-firm concentration ratio = percent Herfindahl index =

Suppose thata small town has seven burger shops whose respective shares of the local hamburger market are (as percentages of all hamburgers sold): 26 percent, 24 percent, 20 percent, 12 percent, 9 percent, 6 percent, and 3 percent. Instructions: Enter your answers as a whole number. a. What is the four-firm concentration ratio of the hamburger industry in this town? percent b. What is the Herfindahl index for the hamburger industry in this town? c. If the top three sellers combine to form a single firm, what would happen to the four-firm concentration ratio and to the Herfindahl index? Four-firm concentration ratio = percent Herfindahl index =

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Answer the following questions, which relate to measures of concentration: a. What is the meaning of a four-firm concentration ratio of 60 percent? 90 percent? What are the shortcomings of concentration ratios as measures of monopoly power?b. Suppose that the five firms in industry A have annual sales of 30, 30, 20, 10, and 10 percent of total industry sales. For the five firms in industry B, the figures are 60, 25, 5, 5, and 5 percent. Calculate the Herfindahl index for each industry and compare their likely competitiveness.
Economics: Industrial Economics Question: A duopoly exists in the market for lumber in a town. It costs the first company, Big Cutters, $16 per cord of wood while it costs the second company, Pine Stackers, $10 per cord of wood. The local market demand curve for wood is Q-31,000-100P. Assume each has the capacity to serve the entire market and that they can only price in whole dollar amounts (i.e.$30, not $29.99). Assume initially that Cutters and Stackers decide to collude and split the market. How many cords of wood will they sell? Choices: A. 12,000 B. 9,000 C. 15,000 D. 20,000 2. What will be the price they charge? Choices: A. 190 B. 210 C. 110 D. 160 3. How much will Big Cutters produce? Choices: A. 9,000 B. 4,500 C. 0 D. 15,000 Now assume that collusion is not possible. 4. What is the Nash Equilibrium quantity that Pine Stackers Choices: A. 0 B. 15,300 C. 14,700 D. 29,500 5. What is the Nash Equilibrium price? Choices: A. 15 B. 112 C. 11 D. 157 Thank you for your…
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8. There are several identical firms in a market. The cost function of firm i is q? +q, where q; is the output of this firm, and q is the sum of other firms' output. The market 5 demand is q(p) =-1 p. We assume that all firms are Cournot oligopolists, and the market is free entry. In equilibrium the number of firms in the market is А. 5 В. 4 С.3 D. 2
The following table presents information on the production of five firms that produce all of the output in an industry. Firm Output (units) A 600 B 600 C 500 D 500 E 500 Instructions: Round your answers to two decimal places. a. What is the four-firm concentration ratio for this industry? % b. What is the Herfindahl-Hirschman Index for this industry?
A10 Consider an industry with 2 firms, each firm with marginal costs equal to 0. Market demand curve is given by Q=60- P. With 2 firms, we can write Q=Q1+ Q2 . Suppose that each firm behaves as a “Cournot” competitor, that is, choose the optimal quantity maximizing the profits in a strategic way.(a) What would be the values of Q1, and Q2 in equilibrium? (b) Suppose firm 1 can “commit” its level of output in advance. In other words, if firm 1 announces to produce Q1, firm 2 needs to decide how much to produce assuming that firm 1 would indeed produce Q1. What’s the level of Q1 firm 1 would choose to maximize its profit?
(Figure: Market Demand Curve I) The graph shows the market demand curve. Price (S) 40 35 2 28 24 20 16 12 36 32- 8 4- D 8 9 10 Quantity The equilibrium price in a Cournot duopoly with identical goods is $ a.8. b. 12 c.24 O d. 18.64 0 MC=AC MR 1 2 3 4 5 6 7
Coke and Pepsi dominate the cola market. Suppose that the marginal cost of making cola is $2. Assume also that the demand for cola is given by the following table: Price $8 7 6 5 4 3 2 1 Quantity 5 cans 6 7 8 9 10 11 12 Suppose Coke and Pepsi both supply cola. They form a cartel and agree to cooperate on how much soda to produce. In this cartel case, how many bottles of cola would be sold? Type your answer...
What is the concentration ratio?
7. Suppose that the inverse market demand for pumpkins is given by P = $10-0.050. Pumpkins can be grown by any- one at a constant marginal cost of $1. ena. If there are lots of pumpkin growers in town so that the pumpkin industry is competitive, how many pumpkins will be sold, and what price will they sell for? b. Suppose that a freak weather event wipes out the pumpkins of all but two producers, Linus and Lucy. Mesob 0 17050
3. There are two chicken fried steak restaurants operating in a small west Texas town: Cow Tipper Café and Steak to the Heart Diner. Once a month they have to send their new menus to the printer when they have to decide on whether or not to charge a high price or a low price for a chicken fried steak dinner. Once their menus are printed, they can't change their pricing. Since the two restaurants use separate printing companies, each restaurant's pricing decision remains secret until the printed menus are delivered. The payoff matrix for the restaurants is below; the first entry in each cell is Cow Tipper Café's daily profit and the second entry is Steak to the Heart Diner's daily profit. Cow Tipper Café High Price Low Price Steak to the Heart Diner Low Price $350, $300 $450, $400 High Price $500, $350 $375, $475 a. What market structure do these two firms operate in? Explain your answer. b. If Steak to the Heart Diner chooses a high price, what pricing option is better for Cow Tipper…
4. Imagine a market with demand P = 420 – Q in each period. Two firms are thinking about colluding. They each have cost C(Qi) = 60Qi. If they cooperate and behave as a monopoly, then they have a marginal revenue curve, MRm = 420 – 2Q, and a marginal cost curve, MCm = 60. If they are in a cartel, then the firms will split the monopoly production and profits. If they compete, then they face MRi = 420 – 2Qi – Q-I and MCi = 60. a. If the firms stick to their agreement (cooperate), how much per-period profit do they each make? b. If they are not able to maintain their agreement (compete), what is their per-period profit? c. If one firm cheats on their agreement (deviate), how much does each firm make? Be sure to specify both the profit for the cheater and the firm cheated-on. d. Suppose the firms assume that their interaction will last forever (r = 1) and they share the common discount value R. What is the lowest value of R such that both firms are willing to continue with the cartel…