If an industry is monopolized by one firm, the four-firm concentration ratio equals
A) 1 percent.
B) 25 percent.
C) 40 percent.
D) 100 percent.

Name: If an industry is monopolized by one firm, the four-firm concentration ratio equals A) 1 percent. B) 25 percent. C) 40 percent. D) 100 percent.
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Question

Quizplus · Accepted Answer

In a monopoly, one firm controls the entire market, so the four-firm concentration ratio, which measures the market share of the four largest firms, would be 100 percent.

If an Industry Is Monopolized by One Firm, the Four-Firm