【摘要】 将中国创新型城市建设视为一项准自然实验,基于2003—2018年273个地级市的面板数据,利用双重差分模型评估了创新型城市建设对于绿色技术创新的效应、作用机制及区域异质性。结果表明:创新型城市建设对于绿色技术创新具有显著的促进效应,且这种效应存在滞后性;创新型城市建设可以通过政府战略引领、创新人才支撑、产业结构优化推动绿色技术创新,而城市空间扩张的机制不显著;对于东部地区城市、"两控区"城市和规模较大的城市而言,创新型城市建设促进绿色技术创新的效应更为显著。更多还原

【Abstract】 Based on the panel data sets of 273 prefecture-level cities from 2003 to 2018,China’s innovative city construction policy is treated as a quasi-natural experiment,the effect,mechanism and regional heterogeneity of innovative city construction on green technological innovation are evaluated by using difference-in-differences model. The results indicate that:the construction of innovative city has a significant positive effect on green technological innovation,and this effect exhibits lagging. The construction of innovative city can promote green technological innovation through government strategic guidance,innovative talents support and industrial structure optimization,but the mechanism of urban spatial expansion is not significant. The construction of innovative city has more significant positive effects on green technological innovation for the eastern cities,higher administrative level cities and cities in the two control zones.更多还原