TY - JOUR AU - Davis,Donald R. AU - Weinstein,David E. TI - Economic Geography and Reginal Production Structure: An Empirical Investigation JF - National Bureau of Economic Research Working Paper Series VL - No. 6093 PY - 1997 Y2 - July 1997 UR - http://www.nber.org/papers/w6093 L1 - http://www.nber.org/papers/w6093.pdf N1 - Author contact info: Donald R. Davis Department of Economics Columbia University 1004 International Affairs Building 420 West 118th St. New York, NY 10027 Tel: 212/854-4037 Fax: 212/854-8059 E-Mail: drd28@columbia.edu David Weinstein Columbia University, Department of Economics 420 W. 118th Street MC 3308 New York, NY 10027 Tel: 212/854-6880 Fax: 212/854-8059 E-Mail: dew35@columbia.edu AB - There are two principal theories of why countries or regions trade: comparative advantage and increasing returns to scale. Yet there is virtually no empirical work that assesses the relative importance of these two theories in accounting for production structure and trade. We use a framework that nests an increasing returns model of economic geography featuring market effects trade models to account for the structure of regional production in Japan. We find support for the existence of economic geography effects in eight of nineteen manufacturing sectors, including such important ones as transportation equipment, iron and steel, electrical machinery, and chemicals. Moreover, we find that these effects are economically very significant. The latter contrasts with the results of Davis and Weinstein (1997), which found scant economic significance of economic geography for the structure of OECD production. We conclude that while economic geography may explain little about the international structure of production, it is very important for understanding the regional structure of production. ER -