Collusive networks in market sharing agreements in the presence of an antitrust authority
AbstractThis paper studies how the presence of an antitrust authority affects market-sharing agreements made by firms in oligopolistic markets. These agreements prevent firms from entering each other´s market. The set of market-sharing agreements defines a collusive network, which is under suspicion by antitrust authorities. This paper shows that, from the firm´s point of view, the probability of being caught is endogenous and depends on the agreements each firm has signed. Stable collusive networks can be decomposed into a set of isolated firms and complete alliances of different sizes. While in the absence of the antitrust authority, a network is stable if its alliances are large enough, when the antitrust authority is considered, the network is stability depends on the network configuration as a whole. Antitrust laws may have a pro-competitive effect as they give Firms in large alliances more incentives to cut their agreements at once.
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Bibliographic InfoPaper provided by Universidad Carlos III, Departamento de Economía in its series Economics Working Papers with number we085024.
Date of creation: Sep 2008
Date of revision:
Market-sharing; Economic networks; Antitrust authority; Oligopoly;
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
- L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
This paper has been announced in the following NEP Reports:
- NEP-ALL-2008-11-11 (All new papers)
- NEP-BEC-2008-11-11 (Business Economics)
- NEP-COM-2008-11-11 (Industrial Competition)
- NEP-LAW-2008-11-11 (Law & Economics)
- NEP-NET-2008-11-11 (Network Economics)
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