MICROECONOMICS
11th Edition
ISBN: 9781266686764
Author: Colander
Publisher: MCG
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Question
Chapter 15, Problem 8QE
To determine
Find the highly concentrated industry.
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Suppose that the most popular car dealer in your area sells 10 percent of all vehicles. If all other car dealers sell either the same number of vehicles or fewer, what is the largest value that the Herfindahl index could possibly take for car dealers in your area? In that same situation, what would the four-firm concentration ratio be?
Suppose 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.)
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)
v
Chapter 15 Solutions
MICROECONOMICS
Ch. 15.1 - Prob. 1QCh. 15.1 - Prob. 2QCh. 15.1 - Prob. 3QCh. 15.1 - Prob. 4QCh. 15.1 - Prob. 5QCh. 15.1 - Prob. 6QCh. 15.1 - Prob. 7QCh. 15.1 - Prob. 8QCh. 15.1 - Prob. 9QCh. 15.1 - Prob. 10Q
Ch. 15 - Prob. 1QECh. 15 - Prob. 2QECh. 15 - Prob. 3QECh. 15 - Prob. 4QECh. 15 - Prob. 5QECh. 15 - Prob. 6QECh. 15 - Prob. 7QECh. 15 - Prob. 8QECh. 15 - Prob. 9QECh. 15 - Prob. 10QECh. 15 - Prob. 11QECh. 15 - Prob. 12QECh. 15 - Prob. 13QECh. 15 - Prob. 14QECh. 15 - Prob. 15QECh. 15 - Prob. 16QECh. 15 - Prob. 17QECh. 15 - Prob. 18QECh. 15 - Prob. 1QAPCh. 15 - Prob. 2QAPCh. 15 - Prob. 3QAPCh. 15 - Prob. 4QAPCh. 15 - Prob. 5QAPCh. 15 - Prob. 1IPCh. 15 - Prob. 2IPCh. 15 - Prob. 3IPCh. 15 - Prob. 4IPCh. 15 - Prob. 5IPCh. 15 - Prob. 6IPCh. 15 - Prob. 7IP
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- Suppose that the most popular car dealer in your area sells 25 percent of all vehicles. Instructions: Enter your answers as a whole number. a. If all other car dealers sell either the same number of vehicles or fewer, what is the largest value that the Herfindahl index could possibly take for car dealers in your area? b. In that same situation, what would the four-firm concentration ratio be? percentarrow_forwardSuppose that a small town has six burger shops whose respective shares of the local market are (as percentages of all hamburgers sold): 26%, 20%, 18%, 14%, 12%, 10%, What is the four-firm concentration ratio of the hamburger industry and what is the Hirchmann Herfindahl Index (HHI) for the hamburger industry in this town?arrow_forwardSuppose 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?arrow_forward
- The four-firm concentration ratios for industries X and Y are 81 percent and 74 percent, respectively, while the corresponding Herfindahl-Hirschman indexes are 3,100 and 1,600. The Dansby-Willig performance index for industry X is 0.7, while that for industry Y is 0.55. Based on this information, which would lead to the greater increase in social welfare: a slight increase in industry X’s output or a slight increase in industry Y’s output?arrow_forwardSuppose that the six firms in industry A have annual sales of 40, 35, 12, 5, 5, and 3 percent of total industry sales. For the six firms in industry B, the figures are 35, 18, 15, 14, 10, and 8 percent. b. Calculate the four-firm concentration ratio and the Herfindahl index for each industry and compare their likely competitiveness. Instructions: Enter your answers as whole numbers. Industry A four-firm concentration ratio = Industry A Herfindahl index = Industry B four-firm concentration ratio = Industry B Herfindahl index = c. Industry A will be ________ (more/less) competitive than industry B. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.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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