TY - JOUR AU - Spencer,Barbara J. AU - Jones,Ronald W. TI - Vertical Foreclosure and International Trade Policy JF - National Bureau of Economic Research Working Paper Series VL - No. 2920 PY - 1991 Y2 - August 1991 UR - http://www.nber.org/papers/w2920 L1 - http://www.nber.org/papers/w2920.pdf N1 - Author contact info: Barbara J. Spencer University of British Columbia Sauder School of Business 2053 Main Mall Vancouver, BC V6T 1Z2 CANADA Tel: 604/822-8479 Fax: 604/822-8477 E-Mail: barbara.spencer@sauder.ubc.ca AB - We examine conditions under which a low cost vertically integrated manufacturer has an incentive to export an intermediate product to its higher cost (vertically integrated) rival rather than to vertically foreclose, fully cutting off supplies. The nature of supply conditions in the importing country, the size of an import tariff on the final good and optimal policy by the exporting country are all shown to be important for this decision. The exporting country may gain by taxing exports of the final (Cournot) product even though, under Cournot competition, an export subsidy is optimal in the absence of a market for intermediates. In this case, optimal policy also requires an export tax on intermediates, but the higher tax on final goods serves to divert sales to the more profitable market for intermediates increasing the extent of vertical supply. It is optimal to tax the export of both goods or to subsidize the export of both goods. It is never optimal to tax one and subsidize the other. ER -