The top four firms in the industry have 10 percent, 8 percent, 8 percent, and 6 percent of the market. The four-firm concentration ratio of this market is:

Name: The top four firms in the industry have 10 percent, 8 percent, 8 percent, and 6 percent of the market. The four-firm concentration ratio of this market is:
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The four-firm concentration ratio is calculated by adding the market shares of the top four firms: 10% + 8% + 8% + 6% = 32%.

The Top Four Firms in the Industry Have 10 Percent