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Collusion and seasonality of market price - A case of fixed market shares

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  • Bejger, Sylwester

Abstract

The paper develops a simple supergame model of collusion that focuses on the role of fixed (exogenous to game played) system of quantity market shares. Conclusions implied by the model could be used to motivate data - saving markers of collusion based on market price behavior. Following conclusions of the theoretical model we propose marker of collusion based on detecting changes in seasonal parameters of prices in periods of possible collusion. An empirical application of method has been done on well known data of Lysine cartel case.

Suggested Citation

  • Bejger, Sylwester, 2010. "Collusion and seasonality of market price - A case of fixed market shares," Business and Economic Horizons (BEH), Prague Development Center (PRADEC), vol. 2(2), pages 1-12, July.
    • Handle: RePEc:ags:pdcbeh:95962
    DOI: 10.22004/ag.econ.95962
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    References listed on IDEAS

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    1. Connor, John M., 1997. "Archer Daniels Midland: Price Fixer To The World," Staff Papers 28653, Purdue University, Department of Agricultural Economics.
    2. Green, Edward J & Porter, Robert H, 1984. "Noncooperative Collusion under Imperfect Price Information," Econometrica, Econometric Society, vol. 52(1), pages 87-100, January.
    3. Knittel, Christopher R. & Lepore, Jason J., 2010. "Tacit collusion in the presence of cyclical demand and endogenous capacity levels," International Journal of Industrial Organization, Elsevier, vol. 28(2), pages 131-144, March.
    4. de Roos, Nicolas, 2004. "A model of collusion timing," International Journal of Industrial Organization, Elsevier, vol. 22(3), pages 351-387, March.
    5. Richard Ericson & Ariel Pakes, 1995. "Markov-Perfect Industry Dynamics: A Framework for Empirical Work," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 62(1), pages 53-82.
    6. Sylwester Bejger & Joanna Bruzda, 2010. "Detection of collusion in an industry with application of wavelet analysis – empirical research," Acta Universitatis Nicolai Copernici, Ekonomia, Uniwersytet Mikolaja Kopernika, vol. 41, pages 27-42.
    7. Rotemberg, Julio J & Saloner, Garth, 1986. "A Supergame-Theoretic Model of Price Wars during Booms," American Economic Review, American Economic Association, vol. 76(3), pages 390-407, June.
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    Cited by:

    1. Sylwester Bejger, 2015. "Screening for competition failures: some remarks on horizontal anticompetitive behavior visual detection," Ekonomia i Prawo, Uniwersytet Mikolaja Kopernika, vol. 14(2), pages 169-188, June.
    2. Sylwester Bejger & Joanna Bruzda, 2011. "Detection of Collusion Equilibrium in an Industry with Application of Wavelet Analysis," Dynamic Econometric Models, Uniwersytet Mikolaja Kopernika, vol. 11, pages 155-170.
    3. Bejger, Sylwester, 2012. "Cartel in the Indian cement industry: An attempt to identify it," Economics Discussion Papers 2012-18, Kiel Institute for the World Economy (IfW Kiel).
    4. Sylwester Bejger, 2011. "Polish cement industry cartel - preliminary examination of collusion existence," Business and Economic Horizons (BEH), Prague Development Center, vol. 4(1), pages 88-107, January.
    5. Bejger, Sylwester, 2011. "Polish cement industry cartel- preliminary examination of collusion existence," Business and Economic Horizons (BEH), Prague Development Center (PRADEC), vol. 4(1), pages 1-20, January.

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