Carbon Emission Reduction Effect Of Digital Transformation In Manufacturing Industry

The 20th Party Congress report pointed out that to promote a new type of industrialization,accelerate the construction of a strong manufacturing country,a strong quality country,digital China.As a large manufacturing country,China leads the world in manufacturing and has a complete industrial system and the ability to supply industrial products.In the face of major risk impact,manufacturing industry is the"ballast"to ensure that China’s economic and social development is stable and far.However,the development of China’s manufacturing industry is also facing the serious challenge of ecological and environmental problems,of which carbon dioxide emission reduction is a particularly urgent issue.With the advent of the digital era,the economic and social development is fully involved in the digital wave,the manufacturing industry is penetrated by digital information technology,industrialization and information technology to promote the digital transformation of the traditional manufacturing industry.In recent years,the digital transformation of China’s manufacturing industry has achieved remarkable results,making the production efficiency,product quality and international competitiveness of China’s manufacturing industry have been greatly improved.More importantly,the digital transformation of manufacturing industry has shown great potential in reducing carbon dioxide emissions.Under the constraint of"double carbon target",digital transformation of manufacturing industry provides an effective way to achieve carbon emission reduction.Based on the background of China’s"double carbon"strategy,this paper addresses the serious challenges of carbon emission reduction in the manufacturing industry,studies the carbon emission reduction effect of digital transformation of manufacturing industry from the question of whether digital transformation of manufacturing industry can reduce carbon dioxide emissions,analyzes the logical mechanism of digital transformation of manufacturing industry to achieve carbon emission reduction from the theoretical level,and then The theoretical and empirical analysis results conclude that digital transformation of manufacturing industry has significant carbon emission reduction effect.The research of this paper concludes that:First,the digital transformation of China’s manufacturing industry is gradually advancing with remarkable results,while the growth of China’s carbon dioxide emissions also tends to be relatively slow,and the green development trend of manufacturing industry has gradually formed.First,the analysis of statistical data and text data shows that China’s digital transformation of manufacturing industry has made great progress,and at the same time,the digital transformation of China’s manufacturing industry differs greatly among different types of enterprises,and the level of digital transformation of manufacturing industry also differs significantly among regions.Secondly,although China has taken various policy measures to reduce carbon emissions,carbon emissions are still increasing due to the rapid development of China’s economy and the growth of population.Second,the theoretical analysis finds that digital transformation of manufacturing industry can reduce carbon dioxide emissions through substitution effect,penetration effect,scale effect,green technology innovation effect and supply chain optimization effect.The logical framework and mathematical model of digital transformation of manufacturing industry to promote carbon emission reduction are constructed through theoretical deduction,and the analysis concludes that,firstly,according to the externality theory,the negative externality formed by the damage to ecological environment by economic development including manufacturing industry is the essential characteristic of carbon emission in manufacturing industry,and the progress of managing carbon emission problem in manufacturing industry is relatively slow due to the direct and indirect management costs are often high.The digital transformation of manufacturing industry is able to break out of the governance dilemma of previous externality problems and reduce carbon emissions through energy saving and efficiency.Secondly,a theoretical model of emission reduction and efficiency enhancement and a supply chain carbon emission reduction decision optimization model that includes three sectors of final products,intermediate products and digital technology and equipment and upstream and downstream manufacturing supply chain optimization are constructed.Finally,the inner logic of carbon dioxide emission reduction through structural substitution by replacing traditional fossil energy,technology penetration by improving energy utilization efficiency,economies of scale by expanding production scale and thus reducing energy consumption,green technological innovation effect by green low-carbon technology advancement and supply chain optimization by energy saving and efficiency enhancement is analyzed in the process of digital information technology gradually integrating with manufacturing industry.Third,around the conclusions obtained from the logical analysis of carbon emission reduction through digital transformation of manufacturing industry,empirical analysis is conducted using prefecture-level and provincial-level panel data and two-way fixed-effect model to conclude that digital transformation of manufacturing industry has significant carbon emission reduction effect.Firstly,a benchmark regression analysis using prefecture-level city panel data and a two-way fixed-effects model is conducted to find that digital transformation of manufacturing industry has a significant carbon emission reduction effect.At the same time,the impact of digital transformation of manufacturing industry on carbon emission intensity was tested empirically,and it was also found that digital transformation of manufacturing industry has a significant carbon emission reduction effect.Secondly,the carbon emission reduction effect of digital transformation of manufacturing industry is tested by using provincial panel data,and the conclusion is also consistent with the baseline regression conclusion.Again,the robustness tests were conducted using three methods:quantile regression model,substitution of explanatory variables and placebo test,and the results showed that the results of the baseline regression in this paper were robust.Finally,the panel data of prefecture-level cities were divided into samples of different city size and different regions,and then the benchmark model was estimated,and the results showed that there was significant scale heterogeneity and regional heterogeneity in the carbon emission reduction effect of digital transformation of manufacturing industry.Fourth,the empirical analysis of the mediating mechanism concludes that the digital transformation of manufacturing industry promotes the reduction of carbonemissions through the substitution effect of energy consumption,the penetration effect,the scale effect,the green technology innovation effect and the supply chain optimization effect.Specifically,firstly,digital transformation of manufacturing industry optimizes energy consumption structure by replacing traditional fossil energy consumption,thus reducing carbon emissions by means of energy substitution effect.Secondly,digital transformation of manufacturing industry reduces CO₂ emissions by improving green total factor productivity,that is,improving energy utilization efficiency and reducing unnecessary energy consumption.Thirdly,digital transformation of manufacturing industry reduces carbon emissions by driving overall economic growth and promoting economic scale expansion,thereby reducing carbon emissions through economies of scale in energy consumption.Fourth,digital transformation of manufacturing industry reduces carbon emissions by promoting green technological innovation of green and low-carbon technology advancement.Fifth,digital transformation of manufacturing reduces carbon emissions by promoting supply chain optimization and reducing resource waste and energy consumption.Finally,by calculating the Moran index and the analysis of three spatial econometric models,SAR（spatial lag model）,SEM（spatial error model）and SDM（spatial Durbin model）,it is found that the spatial spillover effect between economies has a significant impact on the carbon emission reduction effect of manufacturing digital transformation,and the basic conclusion still holds when the spatial spillover effect is included in the benchmark model analysis The basic conclusion still holds when spatial spillover effects are included in the benchmark model analysis.