进口贸易促进创新示范区建设对我国产业结构优化升级的影响——基于双重差分模型的实证研究

The Impact of Import Trade Promotion Innovation Demonstration Zone Construction on the Optimisation and Upgrading of China's Industrial Structure-An Empirical Study Based on the Double Difference Model

以2009—2021年282个城市面板数据为基础,采用双重差分法实证检验国家进口贸易促进创新示范区建设对产业结构优化升级的影响及其作用机制。研究结果表明,示范区建设显著促进产业结构整体升级。具体而言,示范区建设通过金融发展效应、人才集聚效应、创新驱动效应等机制推动产业结构整体升级。此外,示范区建设对不同地区产业结构的影响存在异质性。从扩大试点范围、差异化建设、“示范区建设+人才培养”组合拳等方面提出了对策建议,以进一步加大产业结构升级的力度,实现更精准的产业优化升级。

Based on the panel data of 282 cities from 2009 to 2021,the article empirically examines the impact of the construction of national import trade promotion innovation demonstration zones on the optimisation and upgrading of industrial structure and its mechanism of action by using the double-difference method.The results of the study show that the construction of the demonstration zone significantly promotes the overall upgrading of industrial structure.Specifically,the construction of the demonstration zone promotes the overall upgrading of industrial structure through the mechanisms of financial development effect,talent gathering effect and innovation driving effect.In addition,there is heterogeneity in the impact of the construction of demonstration zones on the industrial structure of different regions.The article puts forward countermeasures from expanding the scope of pilot projects,differentiated construction and the combination of"demonstration zone construction+talent cultivation",in order to further increase the efforts of industrial structure upgrading and achieve more accurate industrial optimisation and upgrading.