技术创新与长江经济带产业结构升级——市场化的调节作用

技术创新是推动产业结构转型升级的内在驱动力。基于2007-2017年长江经济带地级市面板数据，采用面板Tobit回归方法与门限效应分析方法，考察市场化调节作用下区域技术创新对产业结构升级的影响机制。结果表明，区域技术创新能有效推动产业结构“两化”发展，在引入市场化的调节作用后这种推动力变强且更为显著，进一步研究发现这种调节作用在产业结构合理化中还表现出门限效应。在分区域分析中，这种调节作用在上游以及中游城市相对较强，在下游城市则相对较弱。最后提出，应注重区域发展异质性，构建最优市场环境，发挥区域创新对产业结构转型升级的推动作用。

Technological Innovation and Industrial Structure Upgrading of the Yangtze River Economic Belt

Technological innovation is the internal driving force to promote the transformation and upgrading of industrial structure.Based on the panel data of prefecture-level cities in the Yangtze river economic belt from 2007 to 2017, this paper adopts the panel Tobit regression method and threshold effect analysis method to investigate the influence mechanism of regional technology innovation on industrial structure upgrading under the effect of marketization regulation.The results show that regional technological innovation can effectively promote the rationalization and development of industrial structure, and the driving force becomes stronger and more significant after the introduction of marketization.Further research shows that such a regulating effect also shows threshold effect in the rationalization of industrial structure.In the sectional analysis, the regulating effect is relatively strong in the upstream and mid-stream cities, but relatively weak in the downstream cities.Therefore, it is suggested that regional development heterogeneity should be emphasized and an optimal market environment should be constructed to support regional innovation's role in promoting industrial structure transformation and upgrading.