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From Overt to Tacit Collusion

Author

Listed:
  • Jeroen Hinloopen

    (University of Amsterdam)

  • Adriaan Soetevent

    (University of Amsterdam)

Abstract

Recent laboratory experiments support the popular view that the introduction of corporate leniency programs has significantly decreased cartel activity. The design of these repeated game experiments however is such that engaging in illegal price discussions is the only way for subjects to avoid the one-shot competitive equilibrium. Subjects in the experiment of this paper have multiple feasible Nash equilibrium strategies to avoid the competitive equilibrium. These strategies differ in the difficulty of the coordination problem they have to solve. The experimental results show that if the efforts of the antitrust authority and the leniency program are directed exclusively to the most straightforward collusive scheme, subjects manage to switch to a more intricate form of coordination. This shift from overt collusion to tacit collusion questions the acclaimed success of corporate leniency programs.

Suggested Citation

  • Jeroen Hinloopen & Adriaan Soetevent, 2008. "From Overt to Tacit Collusion," Tinbergen Institute Discussion Papers 08-059/1, Tinbergen Institute.
    • Handle: RePEc:tin:wpaper:20080059
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    References listed on IDEAS

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    1. Jose Apesteguia & Martin Dufwenberg & Reinhard Selten, 2007. "Blowing the Whistle," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 31(1), pages 143-166, April.
    2. Motta, Massimo & Polo, Michele, 2003. "Leniency programs and cartel prosecution," International Journal of Industrial Organization, Elsevier, vol. 21(3), pages 347-379, March.
    3. Charles A. Holt & Monica Capra, 2000. "Classroom Games: A Prisoner's Dilemma," The Journal of Economic Education, Taylor & Francis Journals, vol. 31(3), pages 229-236, September.
    4. Catherine Roux & Thomas von Ungern-Sternberg, 2007. "Leniency Programs in a Multimarket Setting: Amnesty Plus and Penalty Plus," CESifo Working Paper Series 1995, CESifo.
    5. Bigoni, Maria & Le Coq, Chloé & Fridolfsson, Sven-Olof & Spagnolo, Giancarlo, 2008. "Risk Aversion, Prospect Theory, and Strategic Risk in Law Enforcement: Evidence From an Antitrust Experiment," SSE/EFI Working Paper Series in Economics and Finance 696, Stockholm School of Economics.
    6. Jeroen Hinloopen & Adriaan R. Soetevent, 2008. "Laboratory evidence on the effectiveness of corporate leniency programs," RAND Journal of Economics, RAND Corporation, vol. 39(2), pages 607-616, June.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Zhijun Chen & Patrick Rey, 2013. "On the Design of Leniency Programs," Journal of Law and Economics, University of Chicago Press, vol. 56(4), pages 917-957.
    2. Catarina Marvão & Giancarlo Spagnolo, 2018. "Cartels and leniency: Taking stock of what we learnt," Chapters, in: Luis C. Corchón & Marco A. Marini (ed.), Handbook of Game Theory and Industrial Organization, Volume II, chapter 4, pages 57-90, Edward Elgar Publishing.

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    More about this item

    Keywords

    overt collusion; tacit collusion; corporate leniency program; antitrust policy;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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