摘要
在创新驱动城市发展的背景下,科技金融发展为生态环境治理提供了新动力和新方向。本文基于中国2003—2018年262个地级市数据,将“促进科技与金融结合试点”实施视为一次准自然实验,运用双重差分法考察了科技金融政策的环境治理效应及其影响机制。研究发现:首先,科技金融政策的实施对环境污染具有明显的抑制作用,并且与水污染相比,科技金融政策对于空气污染的治理效果更为明显;其次,从城市区位来看,科技金融政策对于东部和北部地区的环境治理效果要优于中部、西部和南部地区;从城市等级来看,科技金融政策对于高等级城市具有更为明显的治污排污效果;最后,中介效应分析表明,金融发展、技术创新和经济规模是科技金融政策改善环境的有效路径。此外,科技金融政策实施对于邻近地区的环境治理具有显著的空间溢出效果。上述分析首次尝试将环境污染纳入到科技金融政策的评估框架中,丰富和完善了环境治理的相关研究,有效地回应了学术界关于科技创新、金融发展和环境治理的争论,为推动经济高质量发展提供了经验证据。
Under the background of urban development driven by innovation,the development of science and technology finance provides a new driving force and direction for ecological environment governance.Based on the data of 262 prefecture level cities in China from 2003 to 2018,“the pilot of combining science and technology with finance”was regarded as a quasi-natural experiment,and the difference-in-differences(DID)method was used to investigate the environmental governance effect and influence mechanism of the science and technology financial policy.The results show as follows.Firstly,the implementation of science and technology financial policy has an obvious inhibitory effect on environmental pollution,and the effect of science and technology financial policy on air pollution is more obvious than that of water pollution.Secondly,from the perspective of urban location,the effect of science and technology financial policy on environmental governance in the eastern and northern regions is better than that in the central,western and southern regions.From the perspective of city level,the science and technology financial policy has more obvious pollution control effect for high-level cities.Finally,the intermediary effect analysis shows that financial development,technological innovation and economic scale are the effective ways for the science and technology financial policy to improve the environment.In addition,the implementation of science and technology financial policy has a significant spatial spillover effect on environmental governance in adjacent areas.The above analysis attempts to bring environmental pollution into the evaluation framework of the science and technology financial policy for the first time,which can enrich and improve the relevant research on environmental governance,effectively respond to the academic debate on scientific and technological innovation,financial development and environmental governance,and provide empirical evidence for promoting high-quality economic development.
作者
汪克亮
姜伟
Wang Keliang;Jiang Wei(School of Economics,Ocean University of China,Qingdao 266100,Shandong,China)
出处
《技术经济》
CSSCI
北大核心
2022年第10期109-121,共13页
Journal of Technology Economics
基金
国家自然科学基金面上项目“绿色发展视阈下的海洋经济效率:评价体系、影响因素及驱动政策”(71973131)。
关键词
科技金融政策
双重差分法
环境治理
中介效应
science and technology financial policy
difference-in-differences method
environmental governance
mediating effect
