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Risk-sharing Contracts with Asymmetric Information

  • Renaud Bourlès

    (Ecole Centrale Marseille and GREQAM – IDEP, Technopôle de Château – Gombert, 38, rue Frédéric Joliot – Curie, 13451 MARSEILLE Cedex 20, France. E-mails: renaud.bourles@centrale-marseille.fr; dominique.henriet@centrale-marseille.fr)

  • Dominique Henriet

    (Ecole Centrale Marseille and GREQAM – IDEP, Technopôle de Château – Gombert, 38, rue Frédéric Joliot – Curie, 13451 MARSEILLE Cedex 20, France. E-mails: renaud.bourles@centrale-marseille.fr; dominique.henriet@centrale-marseille.fr)

We examine how risk-sharing is impacted by asymmetric information on the probability distribution of wealth. We define the optimal incentive compatible agreements in a two-agent model with two levels of wealth. When there is complete information on the probability of the different outcomes, the resulting allocation satisfies the mutuality principle (which states that everyone's final wealth depends only upon the aggregate wealth of the economy). This is no longer true when agents have private information regarding their probability distribution of wealth. Asymmetry of information (i) makes ex-post equal sharing unsustainable between two low-risk agents, and (ii) induces exchanges when agents have the same realization of wealth.

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Article provided by Palgrave Macmillan & International Association for the Study of Insurance Economics (The Geneva Association) in its journal The Geneva Risk and Insurance Review.

Volume (Year): 37 (2012)
Issue (Month): 1 (March)
Pages: 27-56

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Handle: RePEc:pal:genrir:v:37:y:2012:i:1:p:27-56
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