Motivated by recent disasters, this paper analyzes the risk sharing aspect in a federation. The regions can be hit by a shock leading to losses that occur with an exogenous probability and in a stochastically independent way. The regions can spend effort on selfinsurance to reduce the size of...

Many forms of insurance are produced by groups themselves rather than purchased in the market. For example, coverage for workers compensation provided by employers is often produced by the employer, in the sense that the employer bears some or all of the financial risk associated with the...