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Contracting on Networks

Author

Listed:
  • Mohamed Belhaj

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique)

  • Frédéric Deroïan

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique)

Abstract

A principal offers bilateral contracts to a set of agents organized in a network conveying synergies, in a context where agents' efforts are observable and where the principal's objective increases with the sum of efforts. We characterize optimal contracts as a function of agents' positions on the network. The analysis shows that contract enforceability is key to understand optimality. We also examine linear contracting and we analyze the situation where the principal is constrained to contract with a single agent on the network. Last, we extend this setting to network entry.

Suggested Citation

  • Mohamed Belhaj & Frédéric Deroïan, 2015. "Contracting on Networks," Working Papers halshs-01102403, HAL.
  • Handle: RePEc:hal:wpaper:halshs-01102403
    Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-01102403
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    References listed on IDEAS

    as
    1. Belhaj, Mohamed & Bervoets, Sebatian & Deroïan, Frédéric, 2016. "Efficient networks in games with local complementarities," Theoretical Economics, Econometric Society, vol. 11(1), January.
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    5. Coralio Ballester & Antoni Calvó-Armengol & Yves Zenou, 2010. "Delinquent Networks," Journal of the European Economic Association, MIT Press, vol. 8(1), pages 34-61, March.
    6. Jonathan Levin, 2002. "Multilateral Contracting and the Employment Relationship," The Quarterly Journal of Economics, Oxford University Press, vol. 117(3), pages 1075-1103.
    7. Manuela Angelucci & Giacomo De Giorgi, 2009. "Indirect Effects of an Aid Program: How Do Cash Transfers Affect Ineligibles' Consumption?," American Economic Review, American Economic Association, vol. 99(1), pages 486-508, March.
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    9. Antoni Calvó-Armengol & Yves Zenou, 2004. "Social Networks And Crime Decisions: The Role Of Social Structure In Facilitating Delinquent Behavior," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 45(3), pages 939-958, August.
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    11. Ilya Segal, 1999. "Contracting with Externalities," The Quarterly Journal of Economics, Oxford University Press, vol. 114(2), pages 337-388.
    12. Segal, Ilya, 2003. "Coordination and discrimination in contracting with externalities: divide and conquer?," Journal of Economic Theory, Elsevier, vol. 113(2), pages 147-181, December.
    13. Shai Bernstein & Eyal Winter, 2012. "Contracting with Heterogeneous Externalities," American Economic Journal: Microeconomics, American Economic Association, vol. 4(2), pages 50-76, May.
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    Cited by:

    1. Belhaj, Mohamed & Deroïan, Frédéric, 2018. "Targeting the key player: An incentive-based approach," Journal of Mathematical Economics, Elsevier, vol. 79(C), pages 57-64.

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    More about this item

    Keywords

    network; multi-agency; enforceability; optimal contracting; strategic complementarity;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation

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