Microeconomics
13th Edition
ISBN: 9781337617406
Author: Roger A. Arnold
Publisher: Cengage Learning
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Chapter 11, Problem 3WNG
To determine
Determine four-firm concentration ratio.
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Suppose an industry is composed of six firms. Four firms have sales of $10 each, and two firms haves sales of $5 each. What is the four-firm concentration ratio for this industry?
calculate HHI for this industry?
Suppose an industry is composed of six firms. Four firms have sales of $10 each, and two firms have sales of $5 each. What is the four-firm concentration ratio for this industry?
Suppose an industry consists of three firms. Two firms have sales of $10 each, and one firm has sales of $30. What is the Herfindahl-Hirschman index for this industry? What is the four-firm concentration ratio?
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- The Costa Rican gimble industry consists of 14 firms whose annual sales are as shown in the table below: \table[[Firm, Sales (in millions)], [A, 4], [B, 8], [C, 12], [D, 18], [E, 23], [F, 17], [Next eight firms (total), 18]] a. What is the (four-) firm concentration ratio for this industry? Four firm concentration: % b. In what type of market does the gimble industry operate? Market type: c The Costa Rican gimble industry consists of 14 firms whose annual sales are as shown in the table below: Firm A Sales (in millions) 4 B C D E F Next eight firms (total) 8 12 18 23 17 18 a. What is the (four-) firm concentration ratio for this industry? Four firm concentration: % b. In what type of market does the gimble industry operate? Market type: (Click to select) varrow_forwardConsider an industry consists of three firms (Firm-A, Firm-B and Firm-C) with sales of AED300,000, AED700,000, and AED250,000; respectively. Calculate the Herfindahl-Hirschman index (HHI) for the industry. Calculate the four-firm concentration ratio (C4). Do you think the ‘Department of Justice’ (see the guideline below) would attempt to block a horizontal merger between Firm-A and Firm-C)? The Department of Justice’s Guidelines (Suppose): Suppose that the Department of Justice’s Guidelines suggest that antitrust authorities are more likely to challenge a merger when the relevant Herfindahl-Hirschman index is greater than 2,500 and the resulting increase in the index as a result of the merger is more than 200.arrow_forwardSuppose that the top six firms in an industry have total annual sales of $250 billion, $210 billion, $150 billion, $120 billion, $80 billion, and $60 billion, respectively. Instructions: Round your answers to the nearest whole number. a. What is the four-firm concentration ratio for this industry? percent b. What is the Herfindahl index for this industry? (Hint: To find the Herfindahl index, you will need to compute the percentage market share for each firm in the industry. When calculating market share, do not round your intermediate calculations.)arrow_forward
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