School of Business and Management, Zhongnan University of Economics and Law, Wuhan, China.
School of Economics, Shanghai University, Shanghai, China.
PLoS One. 2022 Aug 25;17(8):e0268111. doi: 10.1371/journal.pone.0268111. eCollection 2022.
The launch of the selection process for National Development Zones(NDZs) marked a fundamental change in the construction of development zones, making it an essential position for local authorities to implement high-quality development. Based on the data of prefecture-level cities in China from 2000 to 2018, this paper examines the impact and mechanism of selecting NDZs on urban green innovation through a double-difference spatial durbin model using the selection of NDZs as a "quasi-natural experiment". The study finds that the selection of NDZs can promote green innovation in cities and has a significant window-radiating effect. The heterogeneity test results show that the implementation of the selection policy for development zones in non-old industrial cities, large and medium-sized cities, cities with easy access to transportation, and cities with high market orientation are more likely to promote urban green innovation. At the same time, the higher the level of government governance and the better the level of economic development of the development zones, the more it helps to realize the effects of the selection policy. The results of the mechanism test show that the selection of NDZs has a positive impact on urban green innovation through environmental regulation effects, resource allocation effects, and policy amplification effects.
国家发展新区（NDZs）的选划标志着开发区建设的根本性转变，成为地方政府实施高质量发展的重要阵地。本文利用 2000-2018 年中国地级市层面的数据，采用双重差分空间 Durbin 模型，以 NDZs 的选划为“准自然实验”，考察了选划 NDZs 对城市绿色创新的影响及其作用机制。研究发现，选划 NDZs 可以促进城市的绿色创新，具有显著的窗口辐射效应。异质性检验结果表明，在非老工业城市、大中城市、交通便利的城市和市场导向较高的城市实施开发区选划政策，更有可能促进城市绿色创新。同时，开发区政府治理水平越高、经济发展水平越好，越有助于实现选划政策的效果。机制检验结果表明，NDZs 的选划通过环境规制效应、资源配置效应和政策放大效应，对城市绿色创新产生了积极影响。
