数字金融与碳排放效率提升的关系研究——基于中国省际面板数据分析

A Study on the Relationship between Digital Finance and Carbon Emission Efficiency Improvement--Analysis Based on Inter-provincial Panel Data in China

文章运用超效率SBM模型测算碳排放效率,并基于2011—2020年的省际面板数据实证探究了数字金融对碳排放效率的影响及作用机制。研究发现:数字金融发展有利于碳排放效率提高,经过内生性处理和稳健性检验该结论依然成立。异质性分析表明,在低金融地区以及东部地区数字金融对碳排放效率的促进作用更加显著;2015年之后数字金融相较于2015年之前,发展更加迅速,对碳排放效率的作用显著为正。中介效应分析表明,数字金融可以通过提高创新效率、经济发展质量和技术溢出效应促进碳排放效率提升。分位数回归分析表明,数字金融对不同分位的碳排放效率存在异质性作用。空间溢出效应分析表明,数字金融对邻近地区的碳排放效率存在负空间溢出效应。

The article uses the super-efficient SBM model to measure carbon emission efficiency,and empirically explores the impact of digital finance on carbon emission efficiency and its mechanism of action based on inter-provincial panel data from 2011 to 2020.The study finds that the development of digital finance is conducive to carbon emission efficiency,and the conclusion still holds after endogeneity treatment and robustness test.The heterogeneity analysis shows that digital finance in the low finance region as well as in the eastern region has a more significant contribution to carbon emission efficiency;digital finance after 2015 has developed more rapidly and has a significantly positive effect on carbon emission efficiency.The intermediary effect analysis shows that digital finance can promote carbon emission efficiency through improving innovation efficiency,economic development quality and technology spillover effects.Quantile regression analysis shows that there is a heterogeneous effect of digital finance on carbon emission efficiency in different quartiles.The spatial spillover effect analysis shows that there is a negative spatial spillover effect of digital finance on the carbon emission efficiency of neighboring regions.