政府创新偏好、制度环境与城市绿色创新

Government Innovation Preference,Institutional Environment and Urban Green Innovation

通过整理中国255个地级市面板数据,从制度环境视角探讨政府创新偏好对城市绿色创新的影响效应。基准检验显示,政府创新偏好与制度环境优化均促进城市绿色创新,制度环境优化会强化政府创新偏好对城市绿色创新的促进效应。门槛检验显示,政府创新偏好对城市绿色创新的促进效应存在基于制度环境的双门槛效应,随着制度环境不断优化,政府创新偏好的促进效应呈阶梯式提升态势。异质性分析表明,相较于欠发达城市与内陆城市,政府创新偏好对发达城市与沿海城市绿色创新的促进效应更显著。进一步检验发现,相比于策略性绿色创新,政府创新偏好和制度环境优化更有利于促进城市实质性绿色创新。

The urban green innovation strategy that integrates the two development concepts of green and innovation is effective in helping cities achieve win-win economic and ecological benefits.Local governments play a fundamental and guiding role in promoting the development of urban green innovation.The incentive or binding policies adopted by local governments all reflect the behavior choices of government innovation preference.Institutional environment,as an external macro-governance factor,is easy to affect the economic behaviors of various subjects within its scope,and encourage or constrain each subject to make different behavioral decisions in the differentiated institutional environment.Therefore,this paper aims to investigate the impact of government innovation preference on urban green innovation from the perspective of institutional environment,in an attempt to provide a new theoretical interpretation and practical basis for improving the level of urban green innovation in China.A total of 2550 data samples from 255 prefecture-level cities in China from 2011 to 2020 are included in this paper.A two-way fixed-effect model and a threshold model are adopted to explore the impact of government innovation preference on urban green innovation from the perspective of institutional environment.This study first takes cities as the basic unit and explores the impact of government innovation preferences on urban green innovation from a macro level,as well as the impact of government innovation preferences,institutional environment,and urban green innovation within a unified logical framework.The theoretical analysis of the impact of institutional environment on government innovation preferences for urban green innovation mechanisms is presented.Second,the panel threshold model is used to test if there is a threshold effect of government innovation preference on urban green innovation,and to identify whether there is heterogeneity in the impact of government innovation preference on urban green innovation in terms of urban economic development level and urban geographical location.Third,given the different motivations of urban green innovation behavior,the influences of government innovation preference and institutional environment on urban green substantive innovation and urban green strategic innovation are tested.The results show that,first,both government innovation preference and institutional environment optimization significantly enhance the level of urban green innovation,and institutional environment optimization strengthens the promoting effect of government innovation preference on urban green innovation.The above research conclusions are still valid after endogeneity processing,replacement of explained variables,replacement of measurement models,adjustment of research samples and other robustness tests.Second,the promoting effect of government innovation preference on urban green innovation has a double threshold effect based on institutional environment.The better the institutional environment,the stronger the promoting effect of government innovation preference on urban green innovation.Third,given the threshold effect of institutional environment,the promoting effect of government innovation preference on green innovation in developed cities and coastal cities is stronger than that in less developed cities and inland cities.Fourth,from the perspective of motivation heterogeneity in urban green innovation,it is found that government innovation preference and institutional environment optimization can not only promote urban green substantive innovation,but also urban green strategic innovation.However,compared with green strategic innovation,government innovation preference and institutional environment have a stronger promoting effect on green substantive innovation.Herein,this paper mainly puts forward policy suggestions to effectively guide innovation preference,constantly improve the system environment of the top frame design,and comprehensively strengthen urban development in terms of cultivating scientific and technological talents,enhancing economic development vitality,and building information infrastructure.By establishing a national scientific research infrastructure platform,it is feasible to open up and share innovation resources with urban innovation entities,attract high-quality researchers to enter the field of urban green innovation,and comprehensively consider differentiated urban innovation strategies and asymmetric innovation path selection so that regional innovation infrastructure which is interconnected in steps among cities could facilitate urban green innovation.