TY - JOUR AU - Artuc,Erhan AU - Chaudhuri,Shubham AU - McLaren,John TI - Trade Shocks and Labor Adjustment: A Structural Empirical Approach JF - National Bureau of Economic Research Working Paper Series VL - No. 13465 PY - 2007 Y2 - October 2007 UR - http://www.nber.org/papers/w13465 L1 - http://www.nber.org/papers/w13465.pdf N1 - Author contact info: Erhan Artuc Koc University, Department of Economics Rumelifeneri Yolu Sariyer 34450, Istanbul E-Mail: eartuc@ku.edu.tr Shubham Chaudhuri The World Bank 1818 H Street, NW MS#MC8-808 Washington, DC 20433 USA E-Mail: schaudhuri@worldbank.org John McLaren Department of Economics University of Virginia P.O. Box 400182 Charlottesville, VA 22904-4182 Tel: 434/924-3994 Fax: 434/982-2904 E-Mail: jmclaren@virginia.edu AB - The welfare effects of trade shocks depend crucially on the nature and magnitude of the costs workers face in moving between sectors. The existing trade literature does not directly address this, assuming perfect mobility or complete immobility, or adopting reduced-form approaches to estimation. We present a model of dynamic labor adjustment that does, and which is, moreover, consistent with a key empirical fact: that intersectoral gross flows greatly exceed net flows. Using an Euler-type equilibrium condition, we estimate the mean and the variance of workers' switching costs from the U.S. March Current Population Surveys. We estimate high values of both parameters, implying both slow adjustment of the economy, and sharp movements in wages, in response to a trade shock. Simulations of a trade liberalization indicate that despite the high estimated adjustment cost, in terms of lifetime welfare, the liberalization is Pareto-improving. The explanation for this surprising finding -- which would be missed by a reduced-form approach -- is that the high variance to costs ensures high rates of gross flow; this helps spread the liberalization's benefits around. ER -