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The Value of the Four-Firm Concentration Ratio That Many Economists

Question 204

Multiple Choice

The value of the four-firm concentration ratio that many economists consider indicative of the existence of an oligopoly in a particular industry is

A) anything greater than 10 percent.
B) anything greater than 20 percent.
C) anything greater than 30 percent.
D) anything greater than 40 percent.

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