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Collusion in Growing and Shrinking Markets: Empirical Evidence from Experimental Duopolies

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  • Klaus Abbink
  • Jordi Brandts

Abstract

We study collusive behaviour in experimental duopolies that compete in prices under dynamic demand conditions. In one treatment the demand grows at a constant rate. In the other treatment the demand declines at another constant rate. The rates are chosen so that the evolution of the demand in one case is just the reverse in time than the one for the other case. We use a box-design demand function so that there are no issues of finding and co-ordinating on the collusive price. Contrary to game-theoretic reasoning, our results show that collusion is significantly larger when the demand shrinks than when it grows. We conjecture that the prospect of rapidly declining profit opportunities exerts a disciplining effect on firms that facilitates collusion and discourages deviation.

Suggested Citation

  • Klaus Abbink & Jordi Brandts, 2005. "Collusion in Growing and Shrinking Markets: Empirical Evidence from Experimental Duopolies," UFAE and IAE Working Papers 648.05, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
    • Handle: RePEc:aub:autbar:648.05
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    1. Theo Offerman & Jan Potters & Joep Sonnemans, 2002. "Imitation and Belief Learning in an Oligopoly Experiment," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 69(4), pages 973-997.
    2. Dastidar, Krishnendu Ghosh, 1995. "On the Existence of Pure Strategy Bertrand Equilibrium," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 5(1), pages 19-32, January.
    3. Dufwenberg, Martin & Gneezy, Uri, 2000. "Price competition and market concentration: an experimental study," International Journal of Industrial Organization, Elsevier, vol. 18(1), pages 7-22, January.
    4. Motta,Massimo, 2004. "Competition Policy," Cambridge Books, Cambridge University Press, number 9780521016919, September.
    5. Martin Dufwenberg & Uri Gneezy & Jacob Goeree & Rosemarie Nagel, 2007. "Price floors and competition," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 33(1), pages 211-224, October.
    6. Huck, Steffen & Normann, Hans-Theo & Oechssler, Jorg, 2004. "Two are few and four are many: number effects in experimental oligopolies," Journal of Economic Behavior & Organization, Elsevier, vol. 53(4), pages 435-446, April.
    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. Robert Moir, 1998. "A Monte Carlo Analysis of the Fisher Randomization Technique: Reviving Randomization for Experimental Economists," Experimental Economics, Springer;Economic Science Association, vol. 1(1), pages 87-100, June.
    9. Ivaldi, Marc & Jullien, Bruno & Rey, Patrick & Seabright, Paul & Tirole, Jean, 2003. "The Economics of Tacit Collusion," IDEI Working Papers 186, Institut d'Économie Industrielle (IDEI), Toulouse.
    10. Huck, Steffen & Normann, Hans-Theo & Oechssler, Jorg, 1999. "Learning in Cournot Oligopoly--An Experiment," Economic Journal, Royal Economic Society, vol. 109(454), pages 80-95, March.
    11. Abbink, Klaus & Brandts, Jordi, 2008. "24. Pricing in Bertrand competition with increasing marginal costs," Games and Economic Behavior, Elsevier, vol. 63(1), pages 1-31, May.
    12. Reynolds, Stanley S & Isaac, R Mark, 1992. "Stochastic Innovation and Product Market Organization," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 2(4), pages 525-545, October.
    13. Holt, Charles A & Langan, Loren W & Villamil, Anne P, 1986. "Market Power in Oral Double Auctions," Economic Inquiry, Western Economic Association International, vol. 24(1), pages 107-123, January.
    14. Selten, Reinhard & Apesteguia, Jose, 2005. "Experimentally observed imitation and cooperation in price competition on the circle," Games and Economic Behavior, Elsevier, vol. 51(1), pages 171-192, April.
    15. Smith, Vernon L, 1982. "Markets as Economizers of Information: Experimental Examination of the "Hayek Hypothesis"," Economic Inquiry, Western Economic Association International, vol. 20(2), pages 165-179, April.
    16. Oecd, 2004. "Competition Policy in Subsidies and State Aid," OECD Journal: Competition Law and Policy, OECD Publishing, vol. 6(1), pages 109-173.
    17. Isaac, R. Mark & Reynolds, Stanley S., 1992. "Schumpeterian competition in experimental markets," Journal of Economic Behavior & Organization, Elsevier, vol. 17(1), pages 59-100, January.
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    2. Bradley J. Ruffle, 2013. "When Do Large Buyers Pay Less? Experimental Evidence," Journal of Industrial Economics, Wiley Blackwell, vol. 61(1), pages 108-137, March.
    3. Pedro Mendi & Róbert F. Veszteg, 2009. "Sustainability of collusion: evidence from the late 19th century basque iron and steel industry," Investigaciones Economicas, Fundación SEPI, vol. 33(3), pages 385-405, September.
    4. Miguel A. Fonseca & Hans-Theo Normann, 2013. "Excess Capacity and Pricing in Bertrand-Edgeworth Markets: Experimental Evidence," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 169(2), pages 199-228, June.
    5. Goppelsroeder, Marie, 2009. "Entry in Collusive Markets: An Experimental Study," MPRA Paper 14707, University Library of Munich, Germany.
    6. Nokhaiz Tariq Khan & Javed Aslam & Ateeq Abdul Rauf & Yun Bae Kim, 2022. "The Case of South Korean Airlines-Within-Airlines Model: Helping Full-Service Carriers Challenge Low-Cost Carriers," Sustainability, MDPI, vol. 14(6), pages 1-19, March.

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    More about this item

    Keywords

    Laboratory experiments; industrial organisation; oligopoly; price competition; collusion;
    All these keywords.

    JEL classification:

    • C90 - Mathematical and Quantitative Methods - - Design of Experiments - - - General
    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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