One problem with using concentration ratios is that they can mask certain differences in concentration between markets.

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One problem with using concentration ratios is that they can mask certain differences in concentration between markets. The table below presents the market shares of the four largest firms in two different markets.

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What is the four-firm concentration ratio in each of these markets? Is one market more concentrated than the other?

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Principles Of Economics

ISBN: 9781292294698

13th Global Edition

Authors: Karl E. Case, Ray C. Fair, Sharon E. Oster

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