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The Leniency Rule Revisited: Experiments on Cartel Formation with Open Communication

Author

Listed:
  • Maximilian Andres

    (University of Potsdam)

  • Lisa Bruttel

    (University of Potsdam)

  • Jana Friedrichsen

    (WZB, Humboldt-Universität zu Berlin, DIW Berlin)

Abstract

The experimental literature on antitrust enforcement provides robust evidence that communication plays an important role for the formation and stability of cartels. We extend these studies through a design that distinguishes between innocuous communication and communication about a cartel, sanctioning only the latter. To this aim, we introduce a participant in the role of the competition authority, who is properly incentivized to judge communication content and price setting behavior of the firms. Using this novel design, we revisit the question whether a leniency rule successfully destabilizes cartels. In contrast to existing experimental studies, we find that a leniency rule does not affect cartelization. We discuss potential explanations for this contrasting result.

Suggested Citation

  • Maximilian Andres & Lisa Bruttel & Jana Friedrichsen, 2021. "The Leniency Rule Revisited: Experiments on Cartel Formation with Open Communication," CEPA Discussion Papers 24, Center for Economic Policy Analysis.
  • Handle: RePEc:pot:cepadp:24
    DOI: 10.25932/publishup-49169
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    1. Yu Awaya & Vijay Krishna, 2016. "On Communication and Collusion," American Economic Review, American Economic Association, vol. 106(2), pages 285-315, February.
    2. Claudia M. Landeo & Kathryn E. Spier, 2020. "Optimal Law Enforcement with Ordered Leniency," Journal of Law and Economics, University of Chicago Press, vol. 63(1), pages 71-111.
    3. David J. Cooper & Kai-Uwe K?hn, 2014. "Communication, Renegotiation, and the Scope for Collusion," American Economic Journal: Microeconomics, American Economic Association, vol. 6(2), pages 247-278, May.
    4. Peter L. Ormosi, 2014. "A Tip Of The Iceberg? The Probability Of Catching Cartels," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 29(4), pages 549-566, June.
    5. Georg Clemens & Holger A. Rau, 2019. "Do discriminatory leniency policies fight hard‐core cartels?," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 28(2), pages 336-354, April.
    6. Ben Greiner, 2015. "Subject pool recruitment procedures: organizing experiments with ORSEE," Journal of the Economic Science Association, Springer;Economic Science Association, vol. 1(1), pages 114-125, July.
    7. 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.
    8. Ernst Fehr, 2009. "On The Economics and Biology of Trust," Journal of the European Economic Association, MIT Press, vol. 7(2-3), pages 235-266, 04-05.
    9. Russell Cooper & Douglas V. DeJong & Robert Forsythe & Thomas W. Ross, 1992. "Communication in Coordination Games," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 107(2), pages 739-771.
    10. Motta, Massimo & Polo, Michele, 2003. "Leniency programs and cartel prosecution," International Journal of Industrial Organization, Elsevier, vol. 21(3), pages 347-379, March.
    11. Dean S. Karlan, 2005. "Using Experimental Economics to Measure Social Capital and Predict Financial Decisions," American Economic Review, American Economic Association, vol. 95(5), pages 1688-1699, December.
    12. Maria Bigoni & Sven-Olof Fridolfsson & Chloé Le Coq & Giancarlo Spagnolo, 2015. "Trust, Leniency, and Deterrence," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 31(4), pages 663-689.
    13. Guillaume R. Fréchette & Sevgi Yuksel, 2017. "Infinitely repeated games in the laboratory: four perspectives on discounting and random termination," Experimental Economics, Springer;Economic Science Association, vol. 20(2), pages 279-308, June.
    14. Robert Clark & Jean-François Houde, 2014. "The Effect of Explicit Communication on pricing: Evidence from the Collapse of a Gasoline Cartel," Journal of Industrial Economics, Wiley Blackwell, vol. 62(2), pages 191-228, June.
    15. Luis C. Corchón & Marco A. Marini (ed.), 2018. "Handbook of Game Theory and Industrial Organization, Volume I," Books, Edward Elgar Publishing, number 16873.
    16. Bodnar, Olivia & Fremerey, Melinda & Normann, Hans-Theo & Schad, Jannika Leonie, 2021. "The effects of private damage claims on cartel activity: Experimental evidence," DICE Discussion Papers 315, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE), revised 2021.
    17. repec:pri:rpdevs:gamespaper.pdf is not listed on IDEAS
    18. Joseph E. Harrington, Jr, 2006. "How Do Cartels Operate?," Economics Working Paper Archive 531, The Johns Hopkins University,Department of Economics.
    19. Emons, Winand, 2020. "The effectiveness of leniency programs when firms choose the degree of collusion," International Journal of Industrial Organization, Elsevier, vol. 70(C).
    20. Matthias Blonski & Peter Ockenfels & Giancarlo Spagnolo, 2011. "Equilibrium Selection in the Repeated Prisoner's Dilemma: Axiomatic Approach and Experimental Evidence," American Economic Journal: Microeconomics, American Economic Association, vol. 3(3), pages 164-192, August.
    21. Armin Falk & Anke Becker & Thomas Dohmen & Benjamin Enke & David B. Huffman & Uwe Sunde, 2017. "Global Evidence on Economic Preferences," NBER Working Papers 23943, National Bureau of Economic Research, Inc.
    22. Michael Hesch, 2012. "The Effects Of Ringleader Discrimination On Cartel Stability And Deterrence Experimental Insights," Journal of Advanced Research in Law and Economics, ASERS Publishing, vol. 3(1(5)), pages 26-42.
    23. Joseph E. Harrington Jr. & Myong-Hun Chang, 2015. "When Can We Expect a Corporate Leniency Program to Result in Fewer Cartels?," Journal of Law and Economics, University of Chicago Press, vol. 58(2), pages 417-449.
    24. Marvao, Catarina & Spagnolo, Giancarlo, 2014. "What Do We Know about the Effectiveness of Leniency Policies? A Survey of the Empirical and Experimental Evidence," SITE Working Paper Series 28, Stockholm School of Economics, Stockholm Institute of Transition Economics.
    25. Fonseca, Miguel A. & Normann, Hans-Theo, 2014. "Endogenous cartel formation: Experimental evidence," Economics Letters, Elsevier, vol. 125(2), pages 223-225.
    26. Pablo Ibáñez Colomo, 2016. "Article 101 Tfeu And Market Integration," Journal of Competition Law and Economics, Oxford University Press, vol. 12(4), pages 749-779.
    27. repec:srs:volume:v:3:y:2012:i:1(5):p:26-42 is not listed on IDEAS
    28. Maria Bigoni & Sven-Olof Fridolfsson & Chloé Le Coq & Giancarlo Spagnolo, 2012. "fines, leniency, and rewards in antitrust," RAND Journal of Economics, RAND Corporation, vol. 43(2), pages 368-390, June.
    29. repec:srs:jarle2:3:v:3:y:2012:i:1:p:26-39 is not listed on IDEAS
    30. Stefan P. Penczynski, 2019. "Using machine learning for communication classification," Experimental Economics, Springer;Economic Science Association, vol. 22(4), pages 1002-1029, December.
    31. Erev, Ido & Bornstein, Gary & Wallsten, Thomas S., 1993. "The Negative Effect of Probability Assessments on Decision Quality," Organizational Behavior and Human Decision Processes, Elsevier, vol. 55(1), pages 78-94, June.
    32. Armin Falk & Anke Becker & Thomas Dohmen & Benjamin Enke & David Huffman & Uwe Sunde, 2018. "Global Evidence on Economic Preferences," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 133(4), pages 1645-1692.
    33. Iris Bohnet & Fiona Greig & Benedikt Herrmann & Richard Zeckhauser, 2008. "Betrayal Aversion: Evidence from Brazil, China, Oman, Switzerland, Turkey, and the United States," American Economic Review, American Economic Association, vol. 98(1), pages 294-310, March.
    34. Urs Fischbacher, 2007. "z-Tree: Zurich toolbox for ready-made economic experiments," Experimental Economics, Springer;Economic Science Association, vol. 10(2), pages 171-178, June.
    35. Matthew Gentzkow & Bryan Kelly & Matt Taddy, 2019. "Text as Data," Journal of Economic Literature, American Economic Association, vol. 57(3), pages 535-574, September.
    36. Stephen Davies & Oindrila De, 2013. "Ringleaders in Larger Number Asymmetric Cartels," Economic Journal, Royal Economic Society, vol. 123(11), pages 524-544, November.
    37. Joseph E. Harrington, 2008. "Optimal Corporate Leniency Programs," Journal of Industrial Economics, Wiley Blackwell, vol. 56(2), pages 215-246, June.
    38. Feinerer, Ingo & Hornik, Kurt & Meyer, David, 2008. "Text Mining Infrastructure in R," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 25(i05).
    39. Peter T. Dijkstra & Marco A. Haan & Lambert Schoonbeek, 2021. "Leniency Programs and the Design of Antitrust: Experimental Evidence with Free-Form Communication," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 59(1), pages 13-36, August.
    40. Pedro Dal Bó & Guillaume R. Fréchette, 2018. "On the Determinants of Cooperation in Infinitely Repeated Games: A Survey," Journal of Economic Literature, American Economic Association, vol. 56(1), pages 60-114, March.
    41. Ibáñez Colomo, Pablo, 2016. "Article 101 TFEU and market integration," LSE Research Online Documents on Economics 66502, London School of Economics and Political Science, LSE Library.
    42. 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.
    43. repec:srs:journl:volume:v:3:y:2012:i:1(5):p:26-42 is not listed on IDEAS
    44. Harrington, Joseph E. & Hernan Gonzalez, Roberto & Kujal, Praveen, 2016. "The relative efficacy of price announcements and express communication for collusion: Experimental findings," Journal of Economic Behavior & Organization, Elsevier, vol. 128(C), pages 251-264.
    45. Spagnolo, Giancarlo, 2004. "Divide et Impera: Optimal Leniency Programmes," CEPR Discussion Papers 4840, C.E.P.R. Discussion Papers.
    46. Gomez-Martinez, Francisco & Onderstal, Sander & Sonnemans, Joep, 2016. "Firm-specific information and explicit collusion in experimental oligopolies," European Economic Review, Elsevier, vol. 82(C), pages 132-141.
    47. Ibáñez Colomo, Pablo, 2016. "Article 101 TFEU and market integration," LSE Research Online Documents on Economics 66572, London School of Economics and Political Science, LSE Library.
    48. Croson, Rachel T. A., 2000. "Thinking like a game theorist: factors affecting the frequency of equilibrium play," Journal of Economic Behavior & Organization, Elsevier, vol. 41(3), pages 299-314, March.
    49. repec:oup:jcomle:v:12:y::i:4:p:749-779. is not listed on IDEAS
    50. Hinloopen, Jeroen & Onderstal, Sander, 2014. "Going once, going twice, reported! Cartel activity and the effectiveness of antitrust policies in experimental auctions," European Economic Review, Elsevier, vol. 70(C), pages 317-336.
    51. Fonseca, Miguel A. & Normann, Hans-Theo, 2012. "Explicit vs. tacit collusion—The impact of communication in oligopoly experiments," European Economic Review, Elsevier, vol. 56(8), pages 1759-1772.
    52. Nathan H. Miller, 2009. "Strategic Leniency and Cartel Enforcement," American Economic Review, American Economic Association, vol. 99(3), pages 750-768, June.
    53. Brenner, Steffen, 2009. "An empirical study of the European corporate leniency program," International Journal of Industrial Organization, Elsevier, vol. 27(6), pages 639-645, November.
    54. Odenkirchen, Johannes, 2017. "Pricing Behavior of Cartel Outsiders in Incomplete Cartels," VfS Annual Conference 2017 (Vienna): Alternative Structures for Money and Banking 168309, Verein für Socialpolitik / German Economic Association.
    55. Harrington, Joseph E., 2006. "How Do Cartels Operate?," Foundations and Trends(R) in Microeconomics, now publishers, vol. 2(1), pages 1-105, August.
    56. Yves Breitmoser, 2015. "Cooperation, but No Reciprocity: Individual Strategies in the Repeated Prisoner's Dilemma," American Economic Review, American Economic Association, vol. 105(9), pages 2882-2910, September.
    57. Maximilian Andres & Lisa Bruttel & Jana Friedrichsen, 2020. "Choosing between explicit cartel formation and tacit collusion – An experiment," CEPA Discussion Papers 19, Center for Economic Policy Analysis.
    58. 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.
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    Cited by:

    1. Andres, Maximilian & Bruttel, Lisa & Friedrichsen, Jana, 2023. "How communication makes the difference between a cartel and tacit collusion: A machine learning approach," European Economic Review, Elsevier, vol. 152(C).
    2. Haucap, Justus & Heldman, Christina & Rau, Holger A., 2024. "Gender and cooperation in the presence of negative externalities," Games and Economic Behavior, Elsevier, vol. 147(C), pages 148-169.
    3. Jeong Yeol Kim & Charles N. Noussair, 2023. "Leniency Policies and Cartel Success: An Experiment," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 63(2), pages 187-210, September.
    4. Ruben Korsten & Andrew Samuel, 2023. "Cartel formation and detection: the role of information costs and disclosure," European Journal of Law and Economics, Springer, vol. 56(1), pages 117-153, August.
    5. Isogai, Shigeki & Shen, Chaohai, 2023. "Multiproduct firm’s reputation and leniency program in multimarket collusion," Economic Modelling, Elsevier, vol. 125(C).
    6. Karine Brisset & Francois Cochard & Eve-Angeline Lambert, 2023. "Is Amnesty Plus More Successful in Fighting Multimarket Cartels? An Exploratory Analysis," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 63(2), pages 211-237, September.
    7. Peter T. Dijkstra & Jacob Seifert, 2023. "Cartel Leniency and Settlements: A Joint Perspective," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 63(2), pages 239-273, September.
    8. Nobuyuki Hanaki & Ali I. Ozkes, 2023. "Strategic environment effect and communication," Experimental Economics, Springer;Economic Science Association, vol. 26(3), pages 588-621, July.
    9. Jeroen Hinloopen & Sander Onderstal & Adriaan Soetevent, 2023. "Corporate Leniency Programs for Antitrust: Past, Present, and Future," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 63(2), pages 111-122, September.
    10. Fonseca, Miguel A. & Gonçalves, Ricardo & Pinho, Joana & Tabacco, Giovanni A., 2022. "How do antitrust regimes impact on cartel formation and managers’ labor market? An experiment," Journal of Economic Behavior & Organization, Elsevier, vol. 204(C), pages 643-662.
    11. Haucap, Justus & Heldman, Christina & Rau, Holger A., 2022. "Gender and collusion," DICE Discussion Papers 380, Heinrich Heine University Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    12. Lisa Bruttel & Maximilian Andres, 2024. "Communicating Cartel Intentions," CEPA Discussion Papers 77, Center for Economic Policy Analysis.

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    More about this item

    Keywords

    cartel; judgment of communication; corporate leniency program; price competition; experiment;
    All these keywords.

    JEL classification:

    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices

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