Efficient Unemployment Insurance
This paper constructs a tractable general equilibrium model of search with risk-aversion. An increase in risk-aversion reduces wages, unemployment, and investment. Unemployment insurance (UI) has the reverse effect due to market generated moral hazard: insured workers seek high wage jobs with high unemployment risk. An economy with risk-neutral workers achieves maximal output without any UI. In contrast, in an economy with risk-averse workers, a positive level of UI maximizes output. Therefore, moderate UI not only improves risk-sharing, but also increases output.