文档介绍：毕业论文外文翻译
出处: open economies review
作者: MIGUEL A. LEO´ N-LEDESM
原文:
Exports, Product Differentiation and Knowledge Spillovers
ABSTRACT
Empirical studies on aggregate export behavior have recently emphasized the role played by innovation as the main force driving product differentiation petitiveness for developed countries. These studies treat foreign innovation as a variable that affects negatively national export shares. We incorporate the impact of foreign innovation in a standard new trade theory model and find that, if knowledge spillovers exist, foreign knowledge accumulation could even have a positive effect on national exports. We then test the model using aggregate export data for a set of 21 OECD economies and find that the foreign stock of knowledge affects exports positively for the less advanced countries in the sample and negatively for the G7 economies.
Product differentiation and technological advantages have been widely recognized as crucial factors determining the export performance of countries and sectors. The basic specification of aggregate export functions, however, typically only considers foreign e and relative prices as determinants of exports. These aggregate export equations contain little information about the determinants of export market shares petitiveness. Also, the use of aggregate trade equations implies that exports of different countr