摘要
使用2004~2015年的中国280个地级市的面板数据,对科技创新投入与环境全要素生产率间的非线性关系、内部影响机理和空间异质性进行分析,结果显示:科技创新投入与环境全要素生产率之间呈现倒N型关系,两个拐点的位置分别为7.722(2257.47万元)和9.610(14913.17万元);在外部资本进入、污染治理、市场规模效应3种影响路径中,科技创新投入影响下的外部资本进入对环境全要素生产率依然存在污染避难所的负向效应,科技创新投入与外部资本间效应为0.1363,外部资本与环境全要素生产率间效应为-0.0065;科技创新投入能够增强企业的污染治理技术并提高环境全要素生产率,三者间前后效应分别为-0.0277和-0.0311;科技创新的投入与高效益增强了市场规模效应,有效促进生产结构的转型进而提高环境全要素生产率,三者间前后效应为0.0186和0.4346.空间异质性中,外部资本进入与溢出效应带来的污染避难所负效应在中部地区显著,在西部和东北部地区不显著,而污染天堂正效应在东部地区存在但不显著;污染创新治理投入的技术正溢出效应在东部和西部地区效应显著,在中部和东北部不显著;科技创新投入与市场需求规模效应在空间区域无差异且显著为正.建议依据科技创新投入的不同影响路径来实施空间差异化策略.
This paper examined the issues of the non-linear relationship,mechanism and spatial heterogeneity between investment in technological innovation and environmental total factor productivity,using a city-level panel data with 280 Chinese cities from 2004 to 2015.It showed the following results:there was an inverted N-shaped relationship between investment in technological innovation and environmental total factor productivity,and two turning points were 7.722(22.577 million yuan per year)and 9.610(14913.17 million yuan per year),respectively.The effect of investment in technological innovation on the entry of external capital had negative impact on environmental TFP due to the pollution haven hypothesis,and the effect between the investment and external capital was 0.1363 while the effect between external capital and environmental TFP was-0.0065;investment in technological innovation could improve firms’pollution abatement technologies and increase environmental TFP,the effect between the investment and improvement on abatement technologies was-0.0277 while the effect between improvement on abatement technologies and environmental TFP was-0.0311;investment in technological innovation has also resulted in an increase in the scale effect,which efficiently changed the structure of production and enhanced environmental TFP then,the effect between the investment and changes of production structure was 0.0186 while the effect between changes of production structure and environmental TFP was 0.4346.In spatial heterogeneity,the negative effect of pollution haven due to the entry of external capital and spillover effect was significant in the central China,and insignificant in the west and northeast China,however,the paper found the positive effect of pollution haven in the east China but the effect was insignificant;the positive spillover effect of technology due to the investment in abatement innovation was significant in the east and west China,insignificant in the central and northeast China;the scale effect due to th
作者
陈浩
刘培
余东升
彭书舟
CHEN Hao;LIU Pei;YU Dong-sheng;PENG Shu-zhou(Economics School,Zhongnan University of Economics and Law,Wuhan 430073,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2020年第4期1834-1846,共13页
China Environmental Science
基金
中南财经政法大学中央高校基本科研业务费专项资金资助项目(201810339)。
关键词
科技创新投入
环境全要素生产率
理论机制
空间异质性
science and technology innovation input
environmental total factor productivity
theoretical mechanism
spatial heterogeneity
