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Sharing Risk Efficiently under Suboptimal Punishments for Defection


  • Saunders Drew

    () (Purdue University - Main Campus)


I study efficient risk-sharing in an endowments economy when enforcement is achieved by the threat of reversion to punishments that may be less severe than autarkic consumption. I characterize (up to a technical condition) the set of allocations that may be interpreted as efficient with respect to some punishment convention. The conditions rationalizing such efficiency are very weak; they are (i) resource exhaustion, (ii) satisfaction of individual rationality constraints at each continuation, and (iii) finiteness of the value of the allocation under the implicit decentralizing price system. I show how efficient allocations may be decentralized, and I state versions of the Welfare Theorems for these economies.

Suggested Citation

  • Saunders Drew, 2010. "Sharing Risk Efficiently under Suboptimal Punishments for Defection," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 10(1), pages 1-24, April.
  • Handle: RePEc:bpj:bejtec:v:10:y:2010:i:1:n:17

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    References listed on IDEAS

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    More about this item

    JEL classification:

    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth


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