La Crema: A Case Study of Mutual Fire Insurance
AbstractWe analyze a mutual fire insurance mechanism used in Andorra, which is called La Crema in the local language. This mechanism relies on households' announced property values to determine how much a household is reimbursed in the case of a fire and how payments are apportioned among other households. The only Pareto-efficient al- location reachable through the mechanism requires that all house- holds honestly report the true value of their property. However, such honest reporting is not an equilibrium except in the extreme case in which the property values are identical for all households. Neverthe- less, as the size of the society becomes large, the benefits from devi- ating from truthful reporting vanish, and all the nondegenerate equilibria of the mechanism are nearly truthful and approximately Pareto efficient.
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- A13 - General Economics and Teaching - - General Economics - - - Relation of Economics to Social Values
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- D64 - Microeconomics - - Welfare Economics - - - Altruism; Philanthropy
- D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
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