国际性无形技术外溢与中国全要素生产率——基于分位数回归的实证研究

考虑国际性技术外溢中技术外溢方和吸收方互动因素的基础上,本文测算了我国各省吸收同化的无形国际性外溢R&D存量,将其代入Coe和Helpman推导的内生增长模型中,利用我国各省的面板数据估计了自主R&D存量和无形国际性外溢R&D存量对全要素生产率的弹性系数,同时,应用了分位数回归分析了无形国际性技术外溢对TFP的贡献随着各省市TFP的分位点的变化而变化的趋势。研究结果表明,自主R&D投资显著促进全要素生产率的增长,是我国各省技术进步的主要推动力;无形的国际性技术外溢同样促进了各省的全要素生产率的提高,但其作用要小于自主R&D投资对各省全要素生产率的推动作用。分位数回归结果进一步表明,随着各省市全要素生产率的提高,无形的国际性技术外溢对各省全要素生产率的促进作用逐步降低。

Direct International R&D Spillover and Total Factor Productivity in China: Empirical Research Based on Quantile Regression

In addition domestic R&D investment,China has been relying on international R&D spillovers from the developed country to grow its economy.International spillovers consist of international trade,foreign direct investment(FDI),and direct(intangible) spillovers.Intangible spillovers include reverse engineering,students returning from foreign countries,dialog between academic researchers,information exchange through electronic means,academic journals,and international conferences,and so on.Researchers begin pay...