TY - JOUR AU - Harrigan,James AU - Zakrajsek,Egon TI - Factor Supplies and Specialization in the World Economy JF - National Bureau of Economic Research Working Paper Series VL - No. 7848 PY - 2000 Y2 - August 2000 UR - http://www.nber.org/papers/w7848 L1 - http://www.nber.org/papers/w7848.pdf N1 - Author contact info: James Harrigan Department of Economics University of Virginia P.O. Box 400182 Charlottesville, VA 22904-4182 Tel: 434-243-8354 Fax: 434-982-2904 E-Mail: harrigan@nber.org Egon Zakrajsek Division of Monetary Affairs Federal Reserve Board 20th Street & Constitution Avenue, NW Washington, D.C. 20551 Tel: 202/728-5864 Fax: 202/452-2846 E-Mail: egon.zakrajsek@frb.gov AB - A core prediction of the Heckscher-Ohlin theory is that countries specialize in goods in which they have a comparative advantage, and that the source of comparative advantage is differences in relative factor supplies. To examine this theory, we use the most extensive dataset available and document the pattern of industrial specialization and factor endowment differences in a broad sample of rich and developing countries over a lengthy period (1970-92). Next, we develop an empirical model of specialization based on factor endowments, allowing for unmeasurable technological differences and estimate it using panel data techniques. In addition to estimating the effects of factor endowments, we also consider the alternative hypothesis that the level of aggregate productivity by itself can explain specialization. Our results clearly show the importance of factor endowments on specialization: relative endowments do matter. ER -