环境规制、政府补贴与区域绿色技术创新

Environmental Regulation,Government Subsidies and Regional Green Technology Innovation

绿色技术创新已成为经济转型与绿色发展的重要支撑。基于2004—2018年中国省际面板数据,运用空间杜宾模型考察环境规制与政府补贴对绿色技术创新的本地效应和空间溢出效应。研究发现:绿色技术创新在省际空间上表现出明显的聚集特征,政府在推动绿色创新发展中占据着至关重要的地位;政府基于绿色发展目标实施的环境规制政策会对绿色技术创新产生倒U形的本地效应,即各省份整体绿色创新能力会随当地政府规制强度的增大而提高,但当规制强度超过临界点则会产生抑制作用;政府的补贴政策可通过直接和间接两种方式来提升当地的绿色创新能力;从对邻近省份绿色技术创新能力的影响估计结果来看,环境规制和政府补贴都存在负面空间溢出效应,即不利于关联地区的绿色技术进步。

Green technology innovation has become an important support for economic transformation and green development.Based on the inter-provincial panel data of China from 2004 to 2018,this paper uses the Spatial Durbin Model to investigate the local and spatial spillover effects of environmental regulation and government subsidies on green technology innovation.It is found that green technology innovation shows obvious aggregation characteristics in the inter-provincial space,and the government plays a crucial role in promoting the development of green innovation.The environmental regulation policy implemented by the government based on the green development goal will have an inverted"U"type of local effect on green technology innovation.It means that the overall green innovation capability of provinces and cities will increase with the increase of the intensity of local government regulation.But it will have a restraining effect when the intensity of regulation exceeds its critical point.And the government’s subsidy policy can improve the local green innovation ability both directly and indirectly.From the estimation results of the impact on the green technology innovation capacity of neighboring provinces,environmental regulation and government subsidies both have negative spatial spillover effect,which is not conducive to the green technology progress of related regions.The research results are of positive reference value to the formulation of regional green development policies.