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Collusive networks in market-sharing agreements under the presence of an antitrust authority

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  • Roldan, Flavia

    (IESE Business School)

Abstract

This paper studies how the presence of an antitrust authority affects market-sharing agreements made by firms. These agreements prevent firms from entering each other's market. The set of these agreements defines a collusive network, which is pursued by antitrust authorities. This article shows that while in the absence of the antitrust authority, a network is stable if its alliances are large enough when considering the antitrust authority, and more competitive structures can be sustained through bilateral agreements. Antitrust laws may have a pro-competitive effect, as they give firms in large alliances more incentives to cut their agreements at once.

Suggested Citation

  • Roldan, Flavia, 2010. "Collusive networks in market-sharing agreements under the presence of an antitrust authority," IESE Research Papers D/854, IESE Business School.
    • Handle: RePEc:ebg:iesewp:d-0854
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    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - 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

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