《multinational corporations and trade strcuture》.pdf

The Review of Economic Studies Ltd. Multinational Corporations and Trade Structure Author(s): Elhanan Helpman Source: The Review of Economic Studies, Vol. 52, No. 3 (Jul., 1985), pp. 443-457 Published by: Oxford University Press Stable URL: /stable/2297663 . Accessed: 21/05/2011 08:59 Your use of the JSTOR archive indicates your acceptance of JSTORs Terms and Conditions of Use, available at . /page/info/about/policies/terms.jsp. JSTORs Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use. Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained at . /action/showPublisher?publisherCode=oup. . Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@. Oxford University Press and The Review of Economic Studies Ltd. are collaborating with JSTOR to digitize, preserve and extend access to The Review of Economic Studies. Review of Economic Studies (1985) LII, 443-457 0034-6527/8502.00 ? 1985 The Society for Economic Analysis Limited MultinationalCorporations and Trade Structure ELHANAN HELPMAN Tel Aviv University First, a model of horiz