高新区设立与区域绿色经济增长——基于PSM-DID模型

运用非径向方向距离函数测算了2003-2016年中国277个地级市绿色全要素增长率，在此基础上，采用倾向匹配的双重差分法实证评估国家高新区对绿色经济增长的影响，并分析其影响机制和传导途径。结果表明：国家高新区显著推动了绿色经济增长，主要通过推动“技术领导者转移效应”实现;国家高新区对绿色经济增长存在明显异质性，呈现出“边际效应递减”。中部地区、低等级城市和“成长期”国家高新区对绿色经济增长促进作用较大，高新区对协调区域绿色发展具有重要意义。传导途径表明，国家高新区以创新驱动人力资本效应、财政配置效应和对外开放效应促进绿色经济增长。

High-tech Zones and Regional Green Growth based on PSM-DID Model

In this paper, the non-radial directional distance function is used to measure the green total factor productivity growth in 277 prefecture-level cities in China from 2003 to 2016, and then the influence of national high-tech zones on green growth is empirically evaluated by using the difference in difference propensity score matching. On the basis, it further studies the conduction pathway. The results show that the national high-tech zones significantly promote green growth, mainly through the promotion of technology leadership change for a given group; the national high-tech zones have obvious heterogeneity to green growth, showing a " marginal diminishing effect".The middle region, the low-grade cities and the "growth period" of the national high-tech zones play a greater role in promoting green growth, the establishment of national high-tech zones is of great significance to promote the coordinated green development of regional economies; the conduction path shows that the innovation driven national high-tech zones promote green growth through the effects of human capital, fiscal allocation and opening to the outside world.