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Sharing aggregate risks under moral hazard

Author

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  • Gabrielle Demange

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris-Jourdan Sciences Economiques - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique)

Abstract

This paper analyzes the efficient design of insurance schemes in the presence of aggregate shocks and moral hazard. The population is divided into groups, the labour force in different sectors for instance. In each group, individuals are ex ante identical but are subject to idiosyncratic shocks. Without moral hazard, optimality requires (1) full insurance against idiosyncratic shocks, which gives rise to a representative agent for each group and (2) optimal sharing of macro-economic risks between these representative agents. The paper investigates what remains of this analysis when the presence of moral hazard conflicts with the full insurance of idiosyncratic shocks. In particular, how is the sharing of macro-economic risks across groups affected by the partial insurance against idiosyncratic risks? The design of unemployment insurance schemes in different economic sectors, and the design of pension annuities in an unfunded social security system are two potential applications.

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  • Gabrielle Demange, 2008. "Sharing aggregate risks under moral hazard," PSE Working Papers halshs-00586739, HAL.
    • Handle: RePEc:hal:psewpa:halshs-00586739
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-00586739
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    References listed on IDEAS

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    1. Edmond Malinvaud, 1974. "The Allocation of Individual Risks in Large Markets," International Economic Association Series, in: Jacques H. Drèze (ed.), Allocation under Uncertainty: Equilibrium and Optimality, chapter 8, pages 110-125, Palgrave Macmillan.
    2. Kimball, Miles S, 1990. "Precautionary Saving in the Small and in the Large," Econometrica, Econometric Society, vol. 58(1), pages 53-73, January.
    3. Radner, Roy, 1972. "Existence of Equilibrium of Plans, Prices, and Price Expectations in a Sequence of Markets," Econometrica, Econometric Society, vol. 40(2), pages 289-303, March.
    4. Prescott, Edward C & Townsend, Robert M, 1984. "Pareto Optima and Competitive Equilibria with Adverse Selection and Moral Hazard," Econometrica, Econometric Society, vol. 52(1), pages 21-45, January.
    5. Breeden, Douglas T & Litzenberger, Robert H, 1978. "Prices of State-contingent Claims Implicit in Option Prices," The Journal of Business, University of Chicago Press, vol. 51(4), pages 621-651, October.
    6. Richard Arnott & Joseph Stiglitz, 1991. "Equilibrium in Competitive Insurance Markets with Moral Hazard," NBER Working Papers 3588, National Bureau of Economic Research, Inc.
    7. Malinvaud, E, 1973. "Markets for an Exchange Economy with Individual Risks," Econometrica, Econometric Society, vol. 41(3), pages 383-410, May.
    8. Rogerson, William P, 1985. "Repeated Moral Hazard," Econometrica, Econometric Society, vol. 53(1), pages 69-76, January.
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    Cited by:

    1. Carlos da Costa & Vitor Farinha Luz, 2018. "The Private Memory of Aggregate Uncertainty," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 27, pages 169-183, January.
    2. Bos, O & P. Schweinzer, 2012. "Risk pooling in redistributive agreements," Discussion Papers 12/17, Department of Economics, University of York.
    3. Carlos Guiné, 2014. "Global Systemically Important Insurers," EIOPA Financial Stability Report - Thematic Articles 2, EIOPA, Risks and Financial Stability Department.
    4. Vitor F. Luz & Carlos E. da Costa, 2010. "The Private Memory of Aggregate Shocks," 2010 Meeting Papers 368, Society for Economic Dynamics.
    5. Mohamed Belhaj & Renaud Bourl?s & Fr?d?ric Dero?an, 2014. "Risk-Taking and Risk-Sharing Incentives under Moral Hazard," American Economic Journal: Microeconomics, American Economic Association, vol. 6(1), pages 58-90, February.
    6. Florian Scheuer, 2013. "Optimal Asset Taxes in Financial Markets with Aggregate Uncertainty," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 16(3), pages 405-420, July.
    7. Olivier Bos & Béatrice Roussillon & Paul Schweinzer, 2016. "Agreeing on Efficient Emissions Reduction," Scandinavian Journal of Economics, Wiley Blackwell, vol. 118(4), pages 785-815, October.
    8. Vitor F. Luz & Carlos E. da Costa, 2011. "Separability and Memory: Micro Causes, Macro Consequences," 2011 Meeting Papers 916, Society for Economic Dynamics.

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