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Unilateral Practices, Antitrust Enforcement and Commitments

Author

Listed:
  • Polo, Michele
  • Rey, Patrick
Abstract
This paper analyses the impact of commitments on antitrust enforcement. These tools, introduced in Europe by the Modernization reform of 2003, are now used intensively by the European Commission and by National Competition Agencies. We consider a setting where a firm can adopt a practice that is either pro- or anti-competitive; the firm knows the nature of the practice whereas the enforcer has only prior beliefs about it. If the firm adopts the practice, the enforcer then decides whether to open a case. When commitments are available, the firm can offer a commitment whenever a case is opened; the enforcer then decides whether to accept it or run a costly investigation that may or may not bring supporting evidence. We show that introducing commitments weakens enforcement when the practice is likely to be anti-competitive. The impact of commitments is however more nuanced when the practice is less likely to be anti-competitive.

Suggested Citation

  • Polo, Michele & Rey, Patrick, 2022. "Unilateral Practices, Antitrust Enforcement and Commitments," CEPR Discussion Papers 17140, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:17140
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    References listed on IDEAS

    as
    1. Axel Gautier & Nicolas Petit, 2018. "Optimal enforcement of competition policy: the commitments procedure under uncertainty," European Journal of Law and Economics, Springer, vol. 45(2), pages 195-224, April.
    2. Mario Mariniello, 2014. "Commitments or prohibition? The EU antitrust dilemma," Policy Briefs 809, Bruegel.
    3. Jennifer F. Reinganum & Louise L. Wilde, 1986. "Settlement, Litigation, and the Allocation of Litigation Costs," RAND Journal of Economics, The RAND Corporation, vol. 17(4), pages 557-566, Winter.
    4. Choné, Philippe & Souam, Saïd & Vialfont, Arnold, 2014. "On the optimal use of commitment decisions under European competition law," International Review of Law and Economics, Elsevier, vol. 37(C), pages 169-179.
    5. Lucian Arye Bebchuk, 1984. "Litigation and Settlement under Imperfect Information," RAND Journal of Economics, The RAND Corporation, vol. 15(3), pages 404-415, Autumn.
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    More about this item

    Keywords

    Antitrust enforcement; Commitment; Remedies; Deterrence;
    All these keywords.

    JEL classification:

    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law
    • K42 - Law and Economics - - Legal Procedure, the Legal System, and Illegal Behavior - - - Illegal Behavior and the Enforcement of Law

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