The higher the concentration ratio, the greater is the degree of market-share information. A common practice is to distinguish among different market structure by degree of concentration. When CR1>90%, it is called? a. tight oligopoly b. effective monopoly c. effective competitive d. loose oligopoly

Exploring Economics
8th Edition
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:Robert L. Sexton
Chapter15: Oligopoly And Strategic Behavior
Section: Chapter Questions
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The higher the concentration ratio, the greater is the degree of market-share information. A common practice is to distinguish among different market structure by degree of concentration. When CR1>90%, it is called?
a.
tight oligopoly
b.
effective monopoly
c.
effective competitive
d.
loose oligopoly
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