Trade in Goods and Factors with International Differences in Technology
用对偶理论构建了一个因生产技术国际差异而引发贸易的一般模型，发现产品增强型技术差异下净出口与技术优势正相关，且要素贸易会扩大商品贸易量；而要素增强型技术差异下的贸易模式则类似要素禀赋差异。
A general model of trade caused by international differences in production technolor is developed using techniques of duality theory.For the case of product-augmenting differences in techno1or, it is shown that there is a positive correlation between net export and technological superiority, such that a country will "on average" export goods for which the country has superior technolor.If some factors are permitted to be internationally traded, it is demonstrated via this correlation that the volume of trade must increase.Thus unlike trade caused by factor endowment differences, goods trade caused by product-augmenting differences in production technolor is always in this sense complementary with factor trade.For factor-augmenting technolor differences, in the absence of factor trade the goods trade pattern is as if it was caused by factor endowment differences.With factor trade, goods trade and factor trade can then be either complements or substitutes.