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Moral hazard and general equilibrium in large economies

  • Marcos B. Lisboa


    (Escola da Pós-Graduação em Economia, Fundação Getúlio Vargas, Rio de Janeiro, RJ 22253-900, BRAZIL)

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    The paper analyzes a two period general equilibrium model with individual risk, aggregate uncertainty and moral hazard. There is a large number of households, each facing two individual states of nature in the second period. These states differ solely in the household's vector of initial endowments, which is strictly larger in the first state (good state) than in the second state (bad state). In the first period each household chooses a non-observable action. Higher levels of action give higher probability of the good state of nature to occur, but lower levels of utility. Households' utilities are assumed to be separable in action and the aggregate uncertainty is independent of the individual risk. Insurance is supplied by a collection of firms who behave strategically and maximize expected profits taking into account that each household's optimal choice of action is a function of the offered contract. The paper provides sufficient conditions for the existence of equilibrium and shows that the appropriate versions of both welfare theorems hold.

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    Article provided by Springer in its journal Economic Theory.

    Volume (Year): 18 (2001)
    Issue (Month): 3 ()
    Pages: 555-575

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    Handle: RePEc:spr:joecth:v:18:y:2001:i:3:p:555-575
    Note: Received: December 7, 1998; revised version: October 25, 1999
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