We analyze efficient risk-sharing arrangements when the value from deviating is determined endogenously by another risk … sharing arrangement. Coalitions form to insure against idiosyncratic income risk. Self-enforcing contracts for both the … facilitates the initial formation of coalitions, the extent of risk sharing in successfully formed coalitions is declining in the …

This paper examines how cooperation in an insurance game depends on risk preferences and the riskiness of income. It … of the discount factor above which perfect risk sharing is self-enforcing. When agents face no aggregate risk, there is … of idiosyncratic and aggregate risk. In the case of exponential (isoelastic) utility, cooperation depends positively on …