数字经济赋能工业绿色转型:内在机制与空间溢出

Digital Economy Empowering Green Transformation of Industries:Internal Mechanisms and Spatial Spillovers

工业作为我国能耗最大的产业,社会经济实现绿色高质量增长的重点领域之一,在“双碳”目标与创新驱动背景下,工业绿色转型发展是我国实现绿色高质量发展的必由之路。本文以2005—2020年我国30个样本省份(西藏自治区、台湾省、香港特别行政区和澳门特别行政区除外)的面板数据为研究样本,构建数字经济发展指标体系测度其发展水平,基于非期望产出的SBM模型测算工业绿色转型效率,进而建立空间杜宾模型和中介效应模型研究数字经济赋能工业绿色转型的空间溢出效应和内在机制。研究结果表明,数字经济促进了工业绿色转型,并且具有显著的正向空间溢出效应,且数字经济可以通过减少煤炭等化石能源消耗促进工业绿色转型;分区域研究发现东、中、西部地区数字经济对工业绿色转型的影响存在空间异质性。对此提出加强数字经济建设、协同提高工业绿色转型效率、调整能源结构等加快工业绿色转型的政策建议。

As the largest energy-consuming sector in China,industry is one of the key areas for the realization of green and high-quality growth of social economy.Under the demand of the carbon peaking and carbon neutrality goals and innovation-driven development,the green transformation and development of industry is the only way to achieve green and high-quality development in China.Taking the panel data of 30 sample provinces in China(except Tibet Autonomous Region,Taiwan Province,Hong Kong Special Administrative Region and Macao Special Administrative Region)from 2005 to 2020 as the research samples,this paper constructs the digital economic development index system to measure their development level,calculates the efficiency of industrial green transformation based on the SBM model of undesirable output,and then establishes the spatial Durbin model and the mediating effect model to study the spatial spillover effect and internal mechanism of digital economy empowering industrial green transformation.The results show that digital economy has promoted industrial green transformation and has a significant positive spatial spillover effect,and furthermore digital economy can promote industrial green transformation by reducing the consumption of fossil energy like coal;from the regional analysis,it is found that there is spatial heterogeneity in the impact of digital economy on industrial green transformation in the eastern,central,and western regions of China respectively.In this regard,policy recommendations are proposed to accelerate the green transformation of industries,including strengthening digital economy development,synergistically enhancing the efficiency of industrial green transformation,and adjusting the energy structure.