Using the CR4, CR8, and HHI, analyze the evolution of the potential market power of firms in the industry.

Exploring Economics
8th Edition
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:Robert L. Sexton
Chapter15: Oligopoly And Strategic Behavior
Section: Chapter Questions
Problem 11P
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Suppose an industry that has 10 firms. Below are the market shares for 2008 and 2013 of the 10 firms.

 

Market Share

Firms

2008

2013

A

B

C

D

E

F

G

H

I

G

26%

21%

16%

10%

9%

7%

4%

3%

2%

2%

22%

23%

19%

9%

8%

7%

6%

4%

1%

1%

 

  1. Using the CR4, CR8, and HHI, analyze the evolution of the potential market power of firms in the industry.

 

 

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