TY - JOUR AU - Shimer,Robert AU - Werning,Ivan TI - Reservation Wages and Unemployment Insurance JF - National Bureau of Economic Research Working Paper Series VL - No. 12618 PY - 2006 Y2 - October 2006 UR - http://www.nber.org/papers/w12618 L1 - http://www.nber.org/papers/w12618.pdf N1 - Author contact info: Robert Shimer Department of Economics University of Chicago 1126 East 59th Street Chicago, IL 60637 Tel: 773/702-9015 E-Mail: shimer@uchicago.edu Ivan Werning MIT Department of Economics 50 Memorial Drive, E51-251a Cambridge, MA 02142-1347 Tel: 617/452-3662 Fax: 617/253-1330 E-Mail: iwerning@mit.edu AB - This paper argues that a risk-averse worker's after-tax reservation wage encodes all the relevant information about her welfare. This insight leads to a novel test for the optimality of unemployment insurance based on the responsiveness of reservation wages to unemployment benefits. Some existing estimates imply significant gains to raising the current level of unemployment benefits in the United States, but highlight the need for more research on the determinants of reservation wages. Our approach complements those based on Baily's (1978) test. ER -