The four largest firms in an industry account for the following value of industry sales: 12 percent, 8 percent, 5 percent and 4 percent. Calculate the four-firm concentration ratio. Would this industry be regarded as competitive or concentrated?

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The Answer of The four largest firms in an industry account for the following value of industry sales: 12 percent, 8 percent, 5 percent and 4 percent. Calculate the four-firm concentration ratio. Would this industry be regarded as competitive or concentrated?

The Four Largest Firms in an Industry Account for the Following