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文章将产业政策变化分为渐变和突变两种类型,以我国高技术产业5个分行业1996-2010年的数据为样本,利用分段回归的计量方法,分析了2004年产业政策突变在产业知识生产机制演变中的作用。研究发现,各投入要素的产出弹性均发生了较大变化,其中R&D资金投入具有最高的产出弹性,其贡献率在2004年后得到进一步的提升,国外技术引进从正产出效应转变为负产出效应,而国内技术引进的产出效应则得到较大的提升。
The paper divides the industrial policy changes into two types: gradual change and abrupt change. Based on the data of five sub-industries in China’s high-tech industry from 1996 to 2010, the article uses the method of piecewise regression to analyze the change of industrial policy in industrial knowledge The evolution of production mechanism. The research finds that the output elasticity of all input elements has undergone great changes. Among them, R & D investment has the highest output elasticity, its contribution rate further increases after 2004, while the foreign technology import changes from the positive output effect to Negative output effect, while the output effect of domestic technology has been greatly improved.