TY - JOUR AU - Feenstra,Robert C. AU - Chen,Yongmin TI - Buyer Investment, Product Variety, and Intrafirm Trade JF - National Bureau of Economic Research Working Paper Series VL - No. 11752 PY - 2005 Y2 - November 2005 UR - http://www.nber.org/papers/w11752 L1 - http://www.nber.org/papers/w11752.pdf N1 - Author contact info: Robert C. Feenstra Department of Economics University of California, Davis One Shields Avenue Davis, CA 95616 Tel: 530/752-7022 Fax: 530/752-9382 E-Mail: rcfeenstra@ucdavis.edu Yongmin Chen Department of Economics University of Colorado at Boulder Boulder, CO 80309 E-Mail: Yongmin.chen@colorado.edu AB - This paper studies a simple model of buyer investment and its effect on the variety and vertical structure of international trade. A distinction is made between two types of buyer investment: "flexible" and "specific." Their interactions with the entry and pricing incentives of suppliers are analyzed. It is shown that (i) there can be multiple equilibria in the variety of products traded, and (ii) less product variety is associated with more intrafirm trade. The possibility of multiple equilibria is consistent with the observation that some similar economies, such as Taiwan and South Korea, differ substantially in their export varieties to the U.S. A formal empirical analysis confirms the negative correlation between product variety and intrafirm trade. ER -