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Randomization with Asymmetric Information

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  • Richard Arnott
  • Joseph E Stiglitz

Abstract

It is by now well known that, in the presence of moral hazard or adverse selection, randomization of insurance premiums and benefits may be Pareto efficient. This article provides a typology of the various forms that randomization may take, derives necessary or sufficient conditions for the desirability of these various forms of randomization, obtains some single characterization theorems of the efficient random policies, gives some intuition behind the results, and considers why randomization appears to occur less often in practice than the theory suggests it should.
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Suggested Citation

  • Richard Arnott & Joseph E Stiglitz, 2010. "Randomization with Asymmetric Information," Levine's Working Paper Archive 2054, David K. Levine.
    • Handle: RePEc:cla:levarc:2054
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