TY - JOUR AU - Kim,Sukkoo TI - Regions, Resources, and Economic Geography: Sources of U.S. Regional Comparative Advantage, 1880-1987 JF - National Bureau of Economic Research Working Paper Series VL - No. 6322 PY - 1997 Y2 - December 1997 UR - http://www.nber.org/papers/w6322 L1 - http://www.nber.org/papers/w6322.pdf N1 - Author contact info: Sukkoo Kim Department of Economics Washington University One Brookings Drive St. Louis, MO 63130-4899 Tel: 314/935-4961 Fax: 314/935-4156 E-Mail: soks@artsci.wustl.edu AB - This paper estimates the Rybczynski equation matrix for the twenty two-digit U.S." manufacturing industries for various years between 1880 and 1987. As predicted by the standard" general equilibrium theory of interregional trade, the regression estimates show that a consistent" set of factor endowments explains a significant amount of the geographic distribution of" manufacturing activities over time. Although these results do not rule out the importance of" increasing returns, they do suggest certain limits on how increasing returns affect U.S. economic" geography. ER -