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Collusion Under Asymmetric Information


  • Laffont, J.J.
  • Martimort, D.


When applied to groups, the revelation principle postulates a Bayesian-Nash behavior between agents. Their binding agreements are unenforceable or the principal can prevent them at no cost. The authors analyze instead a mechanism design problem in which the agents can communicate between themselves and collude under asymmetric information. They characterize the set of implementable collusion-proof contracts both when the principal offers anonymous and nonanonymous contracts. After having isolated the nexi and the stakes of collusion, the authors proceed to normative analysis, do some comparative statics, discuss their concept of collusion-proofness, and provide some insights about transaction costs in side-contracting.
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Suggested Citation

  • Laffont, J.J. & Martimort, D., 1996. "Collusion Under Asymmetric Information," Papers 95.389, Toulouse - GREMAQ.
  • Handle: RePEc:fth:gremaq:95.389

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    References listed on IDEAS

    1. de Bovenberg, A Lans & Mooij, Ruud A, 1994. "Environmental Levies and Distortionary Taxation," American Economic Review, American Economic Association, vol. 84(4), pages 1085-1089, September.
    2. Drew Fudenberg & Jean Tirole, 1991. "Game Theory," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061414, January.
    3. Jean-Jacques Laffont & Jean Tirole, 1993. "A Theory of Incentives in Procurement and Regulation," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262121743, January.
    4. Baron, David P. & Besanko, David, 1984. "Regulation and information in a continuing relationship," Information Economics and Policy, Elsevier, vol. 1(3), pages 267-302.
    5. M. Dewatripont & G. Roland, 1992. "Economic Reform and Dynamic Political Constraints," Review of Economic Studies, Oxford University Press, vol. 59(4), pages 703-730.
    6. Laffont, Jean-Jacques & Tirole, Jean, 1994. "Environmental policy, compliance and innovation," European Economic Review, Elsevier, vol. 38(3-4), pages 555-562, April.
    7. Karl Hausker, 1992. "The politics and economics of auction design in the market for sulfur dioxide pollution," Journal of Policy Analysis and Management, John Wiley & Sons, Ltd., vol. 11(4), pages 553-572.
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    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty


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