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本文在前人研究的基础上,进一步探讨进口贸易的技术溢出效应,在进口贸易的外溢模型中引入实际进口渗透率变量,构建一个以全要素生产率为被解释变量,以国(省)内研发投入和进口来源国研发投入为解释变量的回归方程,并尝试引入一个反映进口贸易政策环境变化的虚拟变量,对进口贸易的技术外溢效应进行测度。本文通过采用广东省的相关数据进行实证分析,表明了进口贸易对广东省的技术进步有显著的促进作用。
On the basis of previous studies, this paper further explores the technology spillover effect of import trade, introduces the actual import penetration variable into the spillover model of import trade, constructs a model that takes total factor productivity as explained variable, The R & D investment of input and source countries as the regression equation of explanatory variables, and try to introduce a dummy variable that reflects the environmental changes of import trade policy to measure the technology spillover effect of import trade. Empirical analysis of the relevant data in Guangdong Province shows that the import trade has a significant role in promoting technological progress in Guangdong Province.