In relation to degree of concentration, CR4<40%?   a. tight oligopoly   b. effective competitive   c. effective monopoly   d. loose oligopoly

Principles of Microeconomics
7th Edition
ISBN:9781305156050
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter17: Oligopoly
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In relation to degree of concentration, CR4<40%?

 

a.

tight oligopoly

 

b.

effective competitive

 

c.

effective monopoly

 

d.

loose oligopoly

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