Homework Help: Economics

Posted by Beverly on Wednesday, May 26, 2010 at 12:02am.

The top four firms in industry A have market shares of 30,25,10,and 5 percent,respectively. The top four firms in industry B have mraket shares of 15,12,8,and 4 percent, respectively. Calculate the four-firm concentration ratios for the two industries. Which industry is more concentrated?

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