Subsidization and Stabilization: Optimal Employment Policy under Aggregate Uncertainty.

The authors study an economy where externalities provide an explicit role for intervention and technology shocks generate aggregate uncertainty. In laissez-faire there is too much unemployment. However, the authors show how to support the optimal allocation as a decentralized equilibrium using a self-financing linear employment subsidy. Generally, this subsidy is a function of economic conditions, and they characterize the way in which it varies with the shock. A special case of the authors' results indicates that a simple restriction on technology, homotheticity, implies the optimal subsidy is constant or independent of unemployment. Copyright 1991 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.