创新价值链视角下人力资本结构高级化对科技创新的影响——兼论研发投入的门槛效应

The Impact of Human Capital Structure Upgrading on Technological Innovation from the Perspective of Innovation Value Chain ——Also on the Threshold Effect of R&D Investment

摘要:

按照创新价值链理论，将科技创新分成科技研发和科技成果转化两个阶段，选取2000-2018年中国30个省级面板数据，构建以研发投入为门槛的门槛模型，实证研究人力资本结构高级化对科技创新的影响，发现：（1）人力资本结构高级化有利于科技研发，却不利于科技成果转化；（2）人力资本结构高级化对科技研发存在双重门槛效应，当研发投入跨过门槛1.22和1.92，促进作用显著加强；对科技成果转化存在单一门槛效应，研发投入跨过门槛0.24，高级化的抑制作用减弱；（3）科技研发阶段，东部地区人力资本结构高级化的影响比中西部地区的更大；但在科技成果转化阶段，东部和中西部区域间人力资本结构高级化的影响差异并不大；（4）尽管人力资本结构高级化抑制科技成果转化，但是人力资本存量对科技成果转化有积极促进作用。

Abstract:

According to the theory of innovation value chain, scientific and technological innovation is divided into two stages: research process and commercial process. Selecting 30 province-level panel data in China from 2000 to 2018, constructing a threshold model with R&D investment as the threshold, and empirically researching the impact of human capital structure upgrading on technological innovation, and finding:(1) The human capital structure upgrading is beneficial to scientific and technological research and development, but is not conducive to the achievement transformation; (2) The human capital structure upgrading has a double threshold effect on scientific and technological research and development, when R&D investment crosses the threshold 1.22 and 1.92, the promotion effect has been significantly strengthened; there is a single threshold effect on the achievement transformation, R&D investment crosses the threshold 0.24, and the inhibitory effect of advancement is weakened; (3) The human capital structure upgrading in the eastern region has a greater impact on the scientific and technological research and development stage. In the achievement transformation stage, there is not much difference in the influence of the human capital structure upgrading among different regions; (4) The human capital structure upgrading inhibits the achievement transformation, but the stock of human capital promotes it.