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Sélection adverse et aversion pour le risque

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  • Bernard Salanié

Abstract

The purpose of this paper is to study a simple example of an adverse selection problem in a Principal-Agent relationship, where uncertainty is not resolved at the time the contract is signed. It is shown that the agent's risk-aversion then plays a critical role in determining the shape of the optimal contract; more precisely, a bunching phenomenon will occur for large (but finite) values of the agent's absolute index of risk-aversion. Since this phenomenon is absent in the two extreme cases of zero or infinite risk-aversion, it is argued that one would miss important points in focussing on these (simpler) cases, as is usually done.

Suggested Citation

  • Bernard Salanié, 1990. "Sélection adverse et aversion pour le risque," Annals of Economics and Statistics, GENES, issue 18, pages 131-149.
    • Handle: RePEc:adr:anecst:y:1990:i:18:p:131-149
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    File URL: http://www.jstor.org/stable/20075789
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    References listed on IDEAS

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    1. Mirrlees, J. A., 1976. "Optimal tax theory : A synthesis," Journal of Public Economics, Elsevier, vol. 6(4), pages 327-358, November.
    2. Lollivier, Stefan & Rochet, Jean-Charles, 1983. "Bunching and second-order conditions: A note on optimal tax theory," Journal of Economic Theory, Elsevier, vol. 31(2), pages 392-400, December.
    3. Guesnerie, Roger & Laffont, Jean-Jacques, 1984. "A complete solution to a class of principal-agent problems with an application to the control of a self-managed firm," Journal of Public Economics, Elsevier, vol. 25(3), pages 329-369, December.
    4. Steven Shavell, 1979. "Risk Sharing and Incentives in the Principal and Agent Relationship," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 55-73, Spring.
    5. repec:adr:anecst:y:1988:i:12:p:02 is not listed on IDEAS
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    Cited by:

    1. Jaeyoung Sung, 2005. "Optimal Contracts Under Adverse Selection and Moral Hazard: A Continuous-Time Approach," The Review of Financial Studies, Society for Financial Studies, vol. 18(3), pages 1021-1073.
    2. Fleurbaey, Marc & Gary-Bobo, Robert J. & Maguain, Denis, 2002. "Education, distributive justice, and adverse selection," Journal of Public Economics, Elsevier, vol. 84(1), pages 113-150, April.
    3. Nicolás Hernández Santibáñez & Dylan Possamaï & Chao Zhou, 2020. "Bank monitoring incentives under moral hazard and adverse selection," Post-Print hal-01435460, HAL.
    4. Lømo, Teis Lunde, 2015. "Risk sharing mitigates opportunism in vertical contracting," Working Papers in Economics 10/15, University of Bergen, Department of Economics.
    5. Laffont, Jean-Jacques & Rochet, Jean-Charles, 1998. "Regulation of a Risk Averse Firm," Games and Economic Behavior, Elsevier, vol. 25(2), pages 149-173, November.
    6. Pierre Martinon & Pierre Picard & Anasuya Raj, 2018. "On the design of optimal health insurance contracts under ex post moral hazard," The Geneva Papers on Risk and Insurance Theory, Springer;International Association for the Study of Insurance Economics (The Geneva Association), vol. 43(2), pages 137-185, September.
    7. Nicolás Hernández Santibáñez & Dylan Possamaï & Chao Zhou, 2020. "Bank Monitoring Incentives Under Moral Hazard and Adverse Selection," Journal of Optimization Theory and Applications, Springer, vol. 184(3), pages 988-1035, March.
    8. El Bouhadi, Abdelhamid, 2006. "Contrat de travail et précarisation : une modélisation de l’information asymétrique d’une situation atypique, cas des pays pauvres et en développement [Employment contract and insecurity jobs: asym," MPRA Paper 19859, University Library of Munich, Germany.
    9. Basov Suren & Yin Xiangkang, 2010. "Optimal Screening by Risk-Averse Principals," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 10(1), pages 1-25, March.
    10. Pierre Martinon & Pierre Picard & Anasuya Raj, 2017. "On the Design of Optimal Health Insurance Contracts under Ex Post Moral Hazard," Working Papers hal-01348551, HAL.
    11. Chifeng Dai, 2008. "Regulating a risk-averse firm under incomplete information," Journal of Regulatory Economics, Springer, vol. 34(1), pages 75-85, August.
    12. Chifeng Dai, 2022. "Optimal risk sharing with ex post private information: Rules versus discretion," Southern Economic Journal, John Wiley & Sons, vol. 89(1), pages 160-184, July.
    13. Bontems, Philippe & Thomas, Alban, 2001. "Optimal Regulation Under Asymmetric Information And Risk Aversion With An Application To Pollution Control," 2001 Annual meeting, August 5-8, Chicago, IL 20727, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).

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