TY - JOUR AU - Davis,Donald R. AU - Weinstein,David E. TI - Market Access, Economic Geography, and Comparative Advantage: An Empirical Assessment JF - National Bureau of Economic Research Working Paper Series VL - No. 6787 PY - 1998 Y2 - November 1998 UR - http://www.nber.org/papers/w6787 L1 - http://www.nber.org/papers/w6787.pdf N1 - Author contact info: Donald R. Davis Columbia University, Department of Economics 1038 Intl. 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 - The increasing returns revolution in trade is incomplete in an important respect there exists no compelling empirical demonstration of the role of increasing returns in determining production and trade structure. One reason is that trade patterns of the canonical increasing returns models are a consequence simply of specialization, which all theories permit. Krugman (1980) shows that increasing returns models with costs of trade economic geography do allow a simple test: home market effects of demand on production. Davis and Weinstein (1996) reject the simple Krugman (1980) model on OECD data. Here we pair the model with a richer geography structure and find evidence of the importance of increasing returns, in combination with comparative advantage, in affecting OECD manufacturing production structure. The results underscore the importance of market access in implementing models of economic geography. ER -