民族地区金融发展与绿色全要素生产率增长——以乌江流域为例

Financial development and growth of green total factor productivity in ethnic areas of China:A case study of forty counties in the Wujiang River Basin

通过综合指数法和考虑非期望产出的非径向距离函数,分别测算了乌江流域民族地区县域金融发展水平和绿色全要素生产率增长情况,并基于1999~2015年数据和SysGMM估计方法,研究了民族地区金融发展对绿色全要素生产率的影响。结果显示,样本地区金融发展水平总体较低,但乌江中下游民族地区优于上游地区;绿色全要素生产率年均增长0.6%,下游地区好于上中游地区。进一步实证研究表明,民族地区金融发展的技术进步效应促进了绿色全要素生产率的增长,但技术效率改进效应还没有得到体现;不同区域有所不同,上中游地区金融发展阻碍了绿色全要素生产率的提高,但下游地区却相反;分时期的估计显示,金融发展对绿色全要素生产率的影响尽管差异不大,但对绿色技术进步和技术效率的影响却是2007年前高于2007年后。

This paper calculates the county -level financial development and green total factor productivity （GTFP） by using the comprehensive index method and the non - radial distance function with a consideration of the expected output, and studies the impact of financial development on GTFP based on the data from 1999 to 2015 and the method of SysGMM estimation in the ethnic areas of the Wujiang River Basin. The results show that the financial development level is generally low, but the ethnic areas in the middle and lower reaches of the Wnjiang River are superior to those of the upper reaches with an annual GTFP increase of 0.6%. Further empirical results show that the effects of the technological progress of financial development can promote the growth of GTFP, but the effects of the improvement in technological efficiency are not obvious. Different regions are different. The financial development in the upper and middle reaches has hindered the improvement of GTFP, but the downstream region has benefited from it. The sub -period estimates show that although the impact of financial development on GTFP is not great, the impact of the progress in green technology and technical efficiency before 2007 is higher than that after 2007.