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Commitment through renegotiation-proof contacts with third parties


  • Mathias Dewatripont


The paper analyzes contracts as means of strategic commitment, that is, commitment against outside parties to the agreement. It considers the example of an incumbent firm which enters a contractual relationship with its workers in order to deter entry. It assumes away the possibility for the parties to precommit not to make Pareto-improving renegotiations of the agreement once entry has taken place. Under symmetric information, the contract is thus found to be useless for entry deterrence. If the incumbent firm or workers possess some private information, excessive post-entry production levels can however be sustained ex post, since output reductions may not be incentive compatible. While information asymmetries are usually welfare-decreasing when the goal is optimal risk sharing, they can thus be welfare-improving for the contracting parties when commitment against outsiders is the goal of the contract. The role of the renegotiation process as a constraint on sustainable agreements is stressed in the paper, and the general relevance of strategic contractual commitment is discussed. © 1988 The Society for Economic Analysis Limited.
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Suggested Citation

  • Mathias Dewatripont, 1988. "Commitment through renegotiation-proof contacts with third parties," ULB Institutional Repository 2013/9569, ULB -- Universite Libre de Bruxelles.
  • Handle: RePEc:ulb:ulbeco:2013/9569

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    References listed on IDEAS

    1. Glenn Ellison & Drew Fudenberg, 2003. "Knife-Edge or Plateau: When Do Market Models Tip?," The Quarterly Journal of Economics, Oxford University Press, vol. 118(4), pages 1249-1278.
    2. Caillaud, Bernard & Jullien, Bruno, 2003. " Chicken & Egg: Competition among Intermediation Service Providers," RAND Journal of Economics, The RAND Corporation, vol. 34(2), pages 309-328, Summer.
    3. Yannis Bakos & Erik Brynjolfsson, 1999. "Bundling Information Goods: Pricing, Profits, and Efficiency," Management Science, INFORMS, vol. 45(12), pages 1613-1630, December.
    4. Mathias Dewatripont & Patrick Legros, 2000. "Mergers in Emerging Markets with Network Externalities: The Case of Telecoms," CIG Working Papers FS IV 00-23, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
    5. Victor Ginsburgh & Israel Zang, 2007. "Bundling by Competitors and the Sharing of Profits," Economics Bulletin, AccessEcon, vol. 12(16), pages 1-9.
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