数字经济发展对城市能源效率的影响——基于长江经济带108个城市的实证分析

The Impact of Digital Economy Development on Urban Energy Efficiency--An Empirical Analysis Based on 108 Cities in the Yangtze River Economic Belt

数字经济通过改变生产方式、管理模式、消费模式重塑经济结构,对实现可持续发展具有重要作用。文章以2011—2021年长江经济带沿线108个城市为研究对象,运用熵值法、超效率SBM模型、面板回归模型分析数字经济发展对城市能源效率的影响。结果表明:研究期内长江经济带沿线城市的数字经济发展水平明显提升;能源效率波动较大;数字经济发展对能源效率具有明显的正向影响,产业结构、人力资本和科技水平也对能源效率具有正向影响。

Digital economy reshapes the traditional economic structure by changing production mode,management mode and consumption mode,which plays an important role in realizing sustainable development.Taking 108 cities along the Yangtze River Economic Belt from 2011 to 2021 as the research object,this paper analyzes the influence of digital economy development on urban energy efficiency by using entropy method,super-efficiency SBM model and panel regression model.The results show that the development level of digital economy and urban energy efficiency of cities along the Yangtze River Economic Belt have improved significantly during the study period.The spatial evolution characteristics of digital economy development level gradually expands from single-center to multi-center distribution pattern,and the energy efficiency changes in an inverted"U"shape.The development of digital economy has a significant positive impact on energy efficiency,as do industrial structure,human capital stock and scientific and technological level.