The Paper addresses the issue of coordinated effects of mergers in the framework of a differentiated products model. Firms’ assets are product varieties that can be sold individually or entirely transferred to another firm in a merger. We show that under symmetric optimal punishment schemes the highest feasible collusive price declines from any asset transfer to the largest firm as long as the size of the smallest firm is unchanged. In contrast, for fully optimal punishment schemes the prices of firms that get larger increase and those of firms that get smaller decrease. In all cases, however, mergers are unprofitable unless the length of product lines is very asymmetric. We discuss the implications of the analysis for merger policy.
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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number
4769.
Find related papers by JEL classification: D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
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