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Tacit collusion with price-matching punishments

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  • Lu, Yuanzhu
  • Wright, Julian

Abstract

Tacit collusion is explored under a strategy in which, loosely speaking, firms match the lowest price set by any firm in the previous period. Conditions are provided under which this strategy supports collusive outcomes in a subgame perfect equilibrium. In contrast to traditional results, the highest collusive price is always lower than the monopoly price. It corresponds to the unique Nash equilibrium price when upward and downward price deviations are matched. Our paper provides a game theoretic interpretation of the old kinked demand curve theory which unlike earlier attempts does not depart from standard timing assumptions to do so.

Suggested Citation

  • Lu, Yuanzhu & Wright, Julian, 2010. "Tacit collusion with price-matching punishments," International Journal of Industrial Organization, Elsevier, vol. 28(3), pages 298-306, May.
  • Handle: RePEc:eee:indorg:v:28:y:2010:i:3:p:298-306
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Garrod, Luke, 2012. "Collusive price rigidity under price-matching punishments," International Journal of Industrial Organization, Elsevier, vol. 30(5), pages 471-482.
    2. Marcelo Resende & Rodrigo M. Zeidan, 2011. "Tacit Collusion under Imperfect Monitoring in the Canadian Manufacturing Industry: An Empirical Study," CESifo Working Paper Series 3623, CESifo Group Munich.
    3. Wright, Julian, 2013. "Punishment strategies in repeated games: Evidence from experimental markets," Games and Economic Behavior, Elsevier, vol. 82(C), pages 91-102.
    4. Pio Baake & Ulrich Schwalbe, 2013. "Price Guarantees, Consumer Search, and Hassle Costs," Discussion Papers of DIW Berlin 1335, DIW Berlin, German Institute for Economic Research.
    5. Joseph E. Harrington, Jr., 2012. "Evaluating Mergers for Coordinated Effects and the Role of 'Parallel Accommodating Conduct'," Economics Working Paper Archive 601, The Johns Hopkins University,Department of Economics.
    6. Harrington, Joseph E., 2017. "A theory of collusion with partial mutual understanding," Research in Economics, Elsevier, vol. 71(1), pages 140-158.
    7. Sylwester Bejger, 2015. "Testing Parallel Pricing Behavior in the Polish Wholesale Fuel Market: an ARDL – Bound Testing Approach," Dynamic Econometric Models, Uniwersytet Mikolaja Kopernika, vol. 15, pages 111-128.
    8. repec:kap:qmktec:v:15:y:2017:i:2:d:10.1007_s11129-017-9182-0 is not listed on IDEAS
    9. Joseph E. Harrington, Jr., 2012. "A Theory of Tacit Collusion," Economics Working Paper Archive 588, The Johns Hopkins University,Department of Economics.
    10. Stefano Colombo, 2012. "Collusion in two models of spatial competition with quantity-setting firms," The Annals of Regional Science, Springer;Western Regional Science Association, vol. 48(1), pages 45-69, February.

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