A four-firm concentration ratio that exceeds 60 percent indicates
A)a perfectly competitive market.
B)a monopolistically competitive market.
C)a monopoly.
D)an oligopoly.
E)a competitive market.

Question

Quizplus · Accepted Answer

A four-firm concentration ratio greater than 60 percent indicates that the market is dominated by a few large firms, which is a characteristic of an oligopoly market structure.

A Four-Firm Concentration Ratio That Exceeds 60 Percent Indicates