我国城市群协同发展的绿色创新效应评估——基于城市经济协调会视角

Assessment of Green Innovation Effect on Coordinated Development of Urban Agglomerations in China--Based on the Perspective of the Urban Economic Coordination Association

党的二十大报告指出,高质量发展是全面建设社会主义现代化国家的首要任务。区域绿色创新是高质量发展的题中之义,但目前对于城市群协同发展能否带来绿色创新效应仍缺乏系统而深入的研究。为此,本文基于城市经济协调会视角,使用PSM-DID方法评估城市群协同发展对绿色创新的影响并分析了其作用机制。研究发现:城市群协同发展显著促进了绿色创新,且对绿色发明专利的促进作用要强于对绿色实用新型专利的促进作用;分样本来看,城市群协同发展对新进城市与原位城市绿色创新均有显著的促进作用,但其对原位城市绿色创新的促进作用明显强于新进城市;作用机制检验结果表明,城市群协同发展能通过加强环境规制、弱化分权竞争、推动产业升级、强化信息公开等机制来促进绿色创新;具体而言,城市群协同发展主要通过推动产业升级、弱化分权竞争机制来影响新进城市绿色创新,主要通过加强环境规制、强化信息公开机制来影响原位城市绿色创新。今后应进一步健全区域绿色创新协调发展的体制机制,结合各地实际采取差异化政策,加强配套社会公共服务体系和人文氛围环境建设等,促进我国城市群绿色协同高质量发展。

The report of the 20th National Congress of the Communist Party of China has pointed out that high-quality development is the primary task of comprehensively building a modern socialist country.Regional green innovation is the essence of high quality development,but there is still a lack of systematic and in-depth research on whether the collaborative development of urban agglomerations can bring about the green innovation effect.Therefore,based on the perspective of the urban agglomeration economic coordination committee,this paper evaluates the impact of coordinated development policy of urban agglomeration on green innovation by the green patent data and the PSM-DID method,and tests the robustness by using different matching strategies and eliminating the interference of urban scale.Results are as follows.The collaborative development of urban agglomerations significantly promotes regional green innovation,and the promotion of invention green patents is stronger than that of utility model green patents.The coordinated development of urban agglomerations shows significant incentive effect on the green innovation of both newly joined cities and existing joined cities.The incentive effect on the green innovation of existing joined cities is more obvious than newly joined cities.The intermediary effect test shows that the coordinated development of urban agglomerations can stimulate the green innovation by strengthening environmental regulation,weakening decentralization competition,promoting industrial upgrading and strengthening information density.The coordinated development of urban agglomerations influences the green innovation of newly joined cities more by promoting industrial upgrading and weakening the decentralized competition,and influences the green innovation of existing joined cities by enhancing environmental regulation and information density.In the future,we should further improve the system and mechanism for coordinated development of green innovation,adopt differentiated policies,strengthen the construction of supporting social public service systems and cultural atmosphere environment,and promote the ecological and green integrated development of urban agglomerations in China.