TY - JOUR AU - Heathcote,Jonathan AU - Storesletten,Kjetil AU - Violante,Giovanni L. TI - Insurance and Opportunities: A Welfare Analysis of Labor Market Risk JF - National Bureau of Economic Research Working Paper Series VL - No. 13673 PY - 2007 Y2 - December 2007 UR - http://www.nber.org/papers/w13673 L1 - http://www.nber.org/papers/w13673.pdf N1 - Author contact info: Jonathan Heathcote Federal Reserve Bank of Minneapolis Research Department 90 Hennepin Ave. Minneapolis, MN 55401 Tel: (612) 204-6385 E-Mail: heathcote@minneapolisfed.org Kjetil Storesletten Federal Reserve Bank of Minneapolis Research Department 90 Hennepin Ave. Minneapolis, MN 55401 Tel: +47 22844009 E-Mail: kjetil.storesletten@econ.uio.no Giovanni L. Violante Department of Economics New York University 19 W. 4th Street New York, NY 10012-1119 Tel: 212/992-9771 Fax: 212/995-3932 E-Mail: glv2@nyu.edu AB - Using a model with constant relative risk-aversion preferences, endogenous labor supply and partial insurance against idiosyncratic wage risk, we provide an analytical characterization of three welfare effects: (a) the welfare effect of a rise in wage dispersion, (b) the welfare gain from completing markets, and (c) the welfare effect from eliminating risk. Our analysis reveals an important trade-off for these welfare calculations. On the one hand, higher wage uncertainty increases the cost associated with missing insurance markets. On the other hand, greater wage dispersion presents opportunities to raise aggregate productivity by concentrating market work among more productive workers. Our welfare effects can be expressed in terms of the underlying parameters defining preferences and wage risk, or alternatively in terms of changes in observable second moments of the joint distribution over individual wages, consumption and hours. ER -