An industry is composed of Firm 1, which controls 70 percent of the market, Firm 2 with 15 percent of the market, and Firm 3 with 5 percent of the market. About 20 firms of approximately equal size divide the remaining 10 percent of the market. Calculate the Herfindahl-Hirschman Index before and after the merger of Firm 2 and Firm 3 (assume that the combined market share after the merger is 20 percent). Would you view a merger of Firm 2 with Firm 3 as procompetitive or anticompetitive? Explain.

Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)
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ISBN:9781305506381
Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
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Chapter16: Government Regulation
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An industry is composed of Firm 1, which controls 70 percent of the market, Firm 2 with 15 percent of the market, and Firm 3 with 5 percent of the market. About 20 firms of approximately equal size divide the remaining 10 percent of the market. Calculate the Herfindahl-Hirschman Index before and after the merger of Firm 2 and Firm 3 (assume that the combined market share after the merger is 20 percent). Would you view a merger of Firm 2 with Firm 3 as procompetitive or anticompetitive? Explain.

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