摘要
财政分权体制下城市创新行为是影响中国环境污染的重要因素之一,以往研究忽视了这个因素。首先分析了城市创新行为和财政分权影响环境污染的理论机理,然后基于2005-2016年271个地级市面板数据,通过构建地理邻接矩阵、经济地理矩阵,运用动态空间杜宾模型,实证检验了城市创新水平、财政分权对环境污染的全局效应和异质性效应。研究发现:考察期内,环境污染在空间全局上呈现出显著的"时间依赖"和"空间溢出"效应。城市创新水平提升对环境污染存在明显的抑制作用,且财政分权对环境污染的影响为正,但不显著;在缓解内生性问题及进行一系列稳健性检验之后,这一结论依然成立。同时,地方政府通过财政分权对城市创新行为的干预抑制了环境污染的治理效果。进一步研究还发现,不同创新极、不同时空节点、不同规模和不同等级下的城市创新水平和财政分权对环境污染的影响存在显著差异。研究结论可为优化城市创新行为和财政分权支出结构,促进中国经济与环境协调发展提供一定的边际经验支持。
Under the fiscal decentralization system, urban innovation is one of the essential factors affecting China’s environmental pollution, which has been neglected in previous studies. First, this paper analyzes the theoretical mechanism of the impact of urban innovation and fiscal decentralization on environment pollution, and then, based on the panel data of 271 prefecture-level cities from 2005 to 2016, it empirically tests the overall and heterogeneous effects of urban innovation level and fiscal decentralization on environmental pollution by constructing geographic adjacency matrix and economic geography matrix and using dynamic spatial Dubin model. The results show that, during the study period, environmental pollution shows significant "time-dependent" and "spatial spillover" effects in the overall space. The improvement of the level of urban innovation has an obvious inhibitory impact on environmental pollution, and the effect of fiscal decentralization on environmental pollution is positive, but not significant. After alleviating endogenous problems and a series of robustness tests, this conclusion is still valid. At the same time, the local government restrains the effect of the environment pollution control through the intervention of fiscal decentralization on urban innovation. Further study also finds that there are significant differences in the impact of urban innovation level and fiscal decentralization on environmental pollution in different innovation poles, different time and space nodes, different sizes, and different levels. The findings may provide some marginal empirical support for optimizing urban innovation and fiscal decentralization expenditure structure and promoting the coordinated development of China’s economy and environment.
作者
杨小东
冉启英
张晋宁
YANG Xiaodong;RAN Qiying;ZHANG Jinning(Innovation Management Research Center,Xinjiang University,Urumqi 830047,China;School of Economics and Management,Xinjiang University,Urumqi 830047,China)
出处
《产业经济研究》
CSSCI
北大核心
2020年第3期1-16,共16页
Industrial Economics Research
基金
国家自然科学基金项目(71463057)
党中央治疆方略理论与实践研究重点项目(19ZJFLZ09)
新疆大学经济与管理学院研究生“丝路”科研奖学金项目(JGSL18053)。
关键词
城市创新行为
财政分权
环境污染
动态空间杜宾模型
创新极
协同治理
urban innovation
fiscal decentralization
environmental pollution
dynamic spatial Dubin model
innovation pole
cooperative treatment
