数字经济、绿色技术创新与能源效率提升——基于城市面板数据的实证分析  

Digital Economy,Green Technology Innovation and Energy Efficiency Improvement--Empirical Analysis Based on Urban Panel Data

作　　者：周彩云[1] 刘丁荣 Zhou Caiyun;Liu Dingrong(School of Economics,Tianjin University of Finance and Economics,Tianjin 300222,China)

机构地区：[1]天津财经大学经济学院,天津300222

出　　处：《工业技术经济》2024年第1期41-52,共12页Journal of Industrial Technological Economics

基　　金：国家社会科学基金一般项目“数字经济背景下的平台垄断与差异性监管研究”(项目编号:22BJY115)。

摘　　要：提高能源效率是我国经济绿色转型和实现双碳目标的必然要求,当下数字经济已成为能源效率提升的新动能。本文基于数字经济的“四化”框架,在理论分析的基础上,运用2011~2020年我国284个地级市的面板数据,实证检验了数字经济影响能源效率提升的机制、特征和路径。结果表明:(1)数字经济及各维度对能源效率提升的总体效应为正,其中产业数字化促进作用最强,且数字经济对能源效率的提升具有区域异质性;(2)数字经济对能源效率的提升存在双门槛,呈现中间波动但总体促进的“N”型特征;(3)数字经济可通过促进绿色技术创新进而提升能源效率,且绿色技术创新水平的提高有助于城市跨越数字经济的第二个门槛,实现数字经济发展与能源效率提升的共赢。Improving energy efficiency is an inevitable requirement for the green transformation of Chinas economy and the realization of the dual carbon goal,and the digital economy has become a new driving force for energy efficiency improvement.Based on the“four modernizations”framework of the digital economy,on the basis of theoretical analysis,the paper empirically tested the mechanism,characteristics and path of digital economy affecting energy efficiency improvement by using the panel data of 284 prefecture-level cities in China from 2011 to 2020.The results show that:(1)the overall effect of digital economy and all di⁃mensions on energy efficiency improvement is positive,among which industrial digitalization has the strongest promoting effect,and the digital economy has regional heterogeneity on the improvement of energy efficiency.(2)The digital economy has a double threshold for the improvement of energy efficiency,showing the“N”type characteristics of intermediate fluctuations but overall promotion.(3)The digital economy can improve energy efficiency by promoting green technology innovation,and the improvement of green technology innovation level helps cities to cross the second threshold of the digital economy and achieve a win-win situation of digital economy development and energy efficiency improvement.

关 键 词：数字经济 能源效率 绿色技术创新 区域差异 门槛效应 阶段性特征 

分 类 号：F49[经济管理—产业经济]