Research on the Spatial-Temporal Pattern and Influencing Factors of Green Technology Innovation in Chinese Cities
Based on the data of green patent application,box diagram,and spatial trend surface analysis method,Theil index were used to analyze the spatial-temporal pattern of green technology innovation in prefec-ture-level and above cities in China.On this basis,the driving factors were identified by ordinary panel regres-sion model.The result shows that:① From 2001 to 2019,Chinese green technology innovation level was signifi-cantly improved,but the difference between East and West was obvious.The overall imbalance was first aggrava-ted and then eased,showing an evolution law from balanced development to unbalanced development to balanced development.② The overall imbalance is mainly due to the differences between regions,and the differences be-tween regions and within regions show a downward trend.③ The overall level of green technology innovation is high in the southeast and low in the northwest,The trend of high-level agglomeration is intensified,Green tech-nology innovation presents a multi polarization development trend,and cities with low level are distributed radial-ly around cities with high level.④ Economic development,industrial structure,opening up,R&D investment and digital economy all have positive driving effects on the development of green technology innovation.
green technology innovationspatial-temporal patterndriving factors