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Price or Quantity in Tacit Collusion?

Author

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  • Luca Lambertini

    (Dept. of Economics, University of Bologna)

  • Christian Schultz

    (Institute of Economics, University of Copenhagen)

Abstract

We investigate the choice of market variable, price or quantity, of an optimal implicit cartel. If the discount factor is high, the cartel can realize the monopoly profit in both cases. Otherwise, it is optimal for the cartel to rely on quantities in the collusive phase if goods are substitutes and prices if goods are complements. The reason is that this minimizes the gains from deviations from collusive play.

Suggested Citation

  • Luca Lambertini & Christian Schultz, 2001. "Price or Quantity in Tacit Collusion?," CIE Discussion Papers 2001-05, University of Copenhagen. Department of Economics. Centre for Industrial Economics.
  • Handle: RePEc:kud:kuieci:2001-05
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    References listed on IDEAS

    as
    1. Majerus, David W., 1988. "Price vs. quantity competition in oligopoly supergames," Economics Letters, Elsevier, vol. 27(3), pages 293-297.
    2. James W. Friedman, 1971. "A Non-cooperative Equilibrium for Supergames," Review of Economic Studies, Oxford University Press, vol. 38(1), pages 1-12.
    3. Rothschild, R., 1992. "On the sustainability of collusion in differentiated duopolies," Economics Letters, Elsevier, vol. 40(1), pages 33-37, September.
    4. Deneckere, R., 1983. "Duopoly supergames with product differentiation," Economics Letters, Elsevier, vol. 11(1-2), pages 37-42.
    5. L. Lambertini & C. Schultz, 2000. "Price vs Quantity in a Repeated Differentiated Duopoly," Working Papers 379, Dipartimento Scienze Economiche, Universita' di Bologna.
    6. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
    7. Albaek, Svend & Lambertini, Luca, 1998. "Collusion in differentiated duopolies revisited," Economics Letters, Elsevier, vol. 59(3), pages 305-308, June.
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    Citations

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    Cited by:

    1. Stefano Colombo, 2016. "Mixed oligopolies and collusion," Journal of Economics, Springer, vol. 118(2), pages 167-184, June.
    2. Alessandra Chirco & Caterina Colombo & Marcella Scrimitore, 2014. "Organizational Structure and the Choice of Price versus Quantity in a Mixed Duopoly," The Japanese Economic Review, Japanese Economic Association, vol. 65(4), pages 521-542, December.
    3. Yasuhiko Nakamura, 2018. "Endogenous Market Structures in the Presence of a Socially Responsible Firm," Journal of Industry, Competition and Trade, Springer, vol. 18(3), pages 319-348, September.
    4. Baldelli, Serena & Lambertini, Luca, 2006. "Price vs quantity in a duopoly supergame with Nash punishments," Research in Economics, Elsevier, vol. 60(3), pages 121-130, September.
    5. Alessandra Chirco & Caterina Colombo & Marcella Scrimitore, 2013. "Organizational Structure and the Choice of Price vs. Quantity in a Mixed Duopoly," Working Paper series 27_13, Rimini Centre for Economic Analysis.
    6. Aguiar-Conraria, Luís & Wen, Yi, 2012. "OPEC's oil exporting strategy and macroeconomic (in)stability," Energy Economics, Elsevier, vol. 34(1), pages 132-136.
    7. Minas Vlassis & Maria Varvataki, 2014. "On the Mode of Competition as a Collusive Perspective in Unionized Oligopoly," Working Papers 1408, University of Crete, Department of Economics.
    8. Scrimitore, Marcella, 2013. "Price or quantity? The strategic choice of subsidized firms in a mixed duopoly," Economics Letters, Elsevier, vol. 118(2), pages 337-341.
    9. Ari Hyytinen & Frode Steen & Otto Toivanen, 2019. "An Anatomy of Cartel Contracts," Economic Journal, Royal Economic Society, vol. 129(621), pages 2155-2191.

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    More about this item

    Keywords

    Partial collusion; product differentiation;

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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