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Fighting Collusion in Tournaments

  • Chen, Zhijun

This paper proposes a new approach of fighting collusion in tournaments which sheds light on the principle of divide and conquer: the principal can benefit from manipulating information revelation, by which he brings asymmetric information between the agents and thus creates a distortion of efficiency in the coalition. We employ a simple tournament setting where, due to perfect collusion, the efficient effort levels are impossible to be implemented through simple mechanisms. We propose a sophisticated mechanism with a biased promotion rule that allows the principal to manipulate the revelation of information and make asymmetric information between the agents, which brings trade-offs between rent-extraction and distortion of efficiency into the coalition. We show that, it is possible to implement efficient effort levels under the sophisticated mechanism. JEL Classification: C72, D82

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 872.

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Date of creation: Nov 2006
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Handle: RePEc:pra:mprapa:872
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  1. Zhijun Chen, 2005. "Divide and Conquer," Labor and Demography 0504012, EconWPA.
  2. Jerry R. Green & Nancy L. Stokey, 1982. "A Comparison of Tournaments and Contracts," NBER Working Papers 0840, National Bureau of Economic Research, Inc.
  3. Laffont, Jean-Jacques & Martimort, David, 1998. "Mechanism Design with Collusion and Correlation," IDEI Working Papers 81, Institut d'Économie Industrielle (IDEI), Toulouse.
  4. Itoh Hideshi, 1993. "Coalitions, Incentives, and Risk Sharing," Journal of Economic Theory, Elsevier, vol. 60(2), pages 410-427, August.
  5. Tirole, Jean, 1986. "Hierarchies and Bureaucracies: On the Role of Collusion in Organizations," Journal of Law, Economics and Organization, Oxford University Press, vol. 2(2), pages 181-214, Fall.
  6. Laffont, J.J. & Martimort, D., 1996. "Collusion Under Asymmetric Information," Papers 95.389, Toulouse - GREMAQ.
  7. Chen, Zhijun, 2006. "Private Enforcement against Collusion in Mechanism Design," MPRA Paper 873, University Library of Munich, Germany.
  8. Ishiguro, Shingo, 2004. "Collusion and discrimination in organizations," Journal of Economic Theory, Elsevier, vol. 116(2), pages 357-369, June.
  9. Edward P. Lazear & Sherwin Rosen, 1979. "Rank-Order Tournaments as Optimum Labor Contracts," NBER Working Papers 0401, National Bureau of Economic Research, Inc.
  10. Myerson, Roger B., 1982. "Optimal coordination mechanisms in generalized principal-agent problems," Journal of Mathematical Economics, Elsevier, vol. 10(1), pages 67-81, June.
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