Microeconomics: Principles, Problems, & Policies (McGraw-Hill Series in Economics)
20th Edition
ISBN: 9780077660819
Author: Campbell R. McConnell, Stanley L. Brue, Sean Masaki Flynn Dr.
Publisher: McGraw-Hill Education
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Chapter 13.4, Problem 1QQ
To determine
Calculate Herfindahl index.
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You are the manager in a market composed of eight firms, each of which has a 12.5 percent market share. In addition, each firm has a strong financial position and is located within a 100-mile radius of its competitors.
a. Calculate the premerger Herfindahl-Hirschman index (HHI) for this market.
b. Suppose that any two of these firms merge. What is the postmerger HHI?
Unsure which is the correct answers
Suppose that three firms make up the entire wig manufacturing industry. One has a 50% market share, and the other two have a 25% market share each.
The Herfindahl index of this industry is a. 3,750
b. 1,000
c. 10,000
d. 5,000
e. 2,500
Mane Attraction, one of the firms with a 25% market share in the wig manufacturing industry, leaves the market. This would cause the Herfindahl index for the industry to __--
a. remain the same
b. fall
c. rise
The largest possible value of the Herfindahl index is 10,000 because:
a. an index of 10,000 corresponds to 100 firms with a 1% market share each
b. an index of 10,000 corresponds to a monopoly firm with 100% market share
c. an industry with an index higher than 10,000 is automatically regulated by the Justice
Department
Market shares of mat makers are in the table below.
Firm
Market Share (Percent)
Made-to-last, Inc
20
Big Wheel, Inc
17
Magic Carpet, Inc
22
Supreme, Inc
17
Copra, Inc
24
1. Calculate the Herfindahl-Hirschman Index
Chapter 13 Solutions
Microeconomics: Principles, Problems, & Policies (McGraw-Hill Series in Economics)
Ch. 13.1 - Prob. 1QQCh. 13.1 - Prob. 2QQCh. 13.1 - Prob. 3QQCh. 13.1 - Prob. 4QQCh. 13.4 - Prob. 1QQCh. 13.4 - The D2e segment of the demand curve D2eD1 in graph...Ch. 13.4 - Prob. 3QQCh. 13.4 - Prob. 4QQCh. 13.A - Prob. 1ADQCh. 13.A - Prob. 2ADQ
Ch. 13.A - Prob. 3ADQCh. 13.A - Prob. 4ADQCh. 13.A - Prob. 1ARQCh. 13.A - Prob. 2ARQCh. 13.A - Prob. 3ARQCh. 13.A - Prob. 1APCh. 13.A - Prob. 2APCh. 13 - Prob. 1DQCh. 13 - Prob. 2DQCh. 13 - Prob. 3DQCh. 13 - Prob. 4DQCh. 13 - Prob. 5DQCh. 13 - Prob. 6DQCh. 13 - Prob. 7DQCh. 13 - Prob. 8DQCh. 13 - Prob. 9DQCh. 13 - Prob. 10DQCh. 13 - Prob. 11DQCh. 13 - Prob. 12DQCh. 13 - Prob. 13DQCh. 13 - Prob. 1RQCh. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - Prob. 3P
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- Suppose that three firms make up the entire wig manufacturing industry. One has a 50% market share, and the other two have a 25% market share each. The Herfindahl index of this industry is _____. a. 3,750 b. 1,000 c. 10,000 d. 5,000 e. 2,500 Mane Attraction, one of the firms with a 25% market share in the wig manufacturing industry, leaves the market. This would cause the Herfindahl index for the industry to _____. a. remain the same b. fall c. rise The largest possible value of the Herfindahl index is 10,000 because: a. an index of 10,000 corresponds to 100 firms with a 1% market share each b. an index of 10,000 corresponds to a monopoly firm with 100% market share c. an industry with an index higher than 10,000 is automatically regulated by the Justice Departmentarrow_forwardHerfindahl index bounds. Suppose you only know the value of the market shares for the largest m firms in a given industry. While you do not possess sufficient information to compute the Herfindahl index, you can find a lower and an upper bound for its values. How?arrow_forwardSuppose there are N=8 hospitals in the market, and each of them has an equal share of the market (1/8). What is the value of the Herfindahl-Hirschman Index in this hospital market? One of the hospitals gets a fancy new cardiac surgery facility, and takes market share from the other hospitals. Now its market share is 85%, and the other 7 hospitals split the remaining 15% of the market equally. What is the value of the HHI in this case? Are each of these markets competitive or concentrated?arrow_forward
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