数字经济对长江经济带绿色发展效率的影响研究  

Study on the impact of digital economy on the efficiency of green development in the Yangtze River Economic Belt

作　　者：尹庆民[1] 卢鹏 YIN Qingmin;LU Peng(School of Business,Hohai University,Nanjing 211100,China)

机构地区：[1]河海大学商学院,江苏南京211100

出　　处：《水利经济》2023年第6期12-19,110,共9页Journal of Economics of Water Resources

摘　　要：为探究数字经济对长江经济带绿色发展效率的影响,基于SBM-ML指数测度2011-2020年长江经济带11个省市的绿色发展效率,运用调节效应和门槛回归等模型进行了实证分析。研究结果表明:长江经济带数字经济发展显著提升了绿色发展效率,但中上游地区的提升效应要强于下游地区,起到了填平区域间绿色发展差距的作用;长江经济带的城镇化水平和城乡收入差距均负向调节数字经济对绿色发展效率的影响,但两者发挥调节效应的作用区域有所差异;随着研发投入的增加,数字经济对绿色发展效率呈现正向边际递增的非线性特征。In order to explore the impact of digital economy on the green development efficiency of the Yangtze River Economic Belt.Based on the SBM-ML index measurement of the green development efficiency of 11 provinces and cities in the Yangtze River Economic Belt during 2011-2020,this paper uses the model of adjustment effect and quantile regression and threshold model to implement an empirical analysis.The research results shows that:The development of digital economy in the Yangtze River Economic Belt has significantly improved the efficiency of green development,and the promotion effect of the middle and upper reaches of the Yangtze River Economic Belt is stronger than that of the lower reaches,which plays a role in bridging the inter-regional green development gap.The urbanization level and urban-rural income gap in the Yangtze River Economic Belt both negatively moderated the impact of digital economy on the efficiency of green development,but there were differences between the two regions in exerting the moderating effect;With the increase of R&D investment,the development of digital economy presents a nonlinear feature of positive marginal increase on green development efficiency.

关 键 词：数字经济 绿色发展效率 城镇化 城乡收入差距 研发投入 长江经济带 

分 类 号：F49[经济管理—产业经济] F124.5