Research On The Impact Of Digital Input On Manufacturing Carbon Emissions

In recent years,the problem of global climate change has brought adverse effects on the living environment of mankind,which makes it a hot topic of common concern for all countries.For countries,the key to tackling climate change is how to further promote carbon emission reduction.Many countries around the world have set their own carbon emission reduction and carbon neutrality goals,and China has also set its own "double carbon" goals,that is,to reach the peak of carbon dioxide emissions in 2030 and achieve carbon neutrality in 2060.In order to build a beautiful China,we need to integrate the "double carbon" work into the overall layout of ecological civilization construction and the overall economic and social development.The same trend as the increase of apparent carbon emissions is the sustainable development of China’s digital economy.According to previous studies,digital economy relies on digital technology and plays a certain role in reducing carbon emissions through deep integration with traditional industries,changing industrial structure and improving production efficiency.As a major manufacturing country,China’s manufacturing industry’s carbon emissions are second only to the electric power industry.It is of great guiding significance to explore the impact of digital investment on the carbon emissions of the manufacturing industry for formulating the corresponding carbon emission reduction policies.This paper first combs the main influencing factors of carbon emissions,the definition of the digital economy and emission reduction effect,and the analysis of the impact of the digital economy on the carbon emissions of the manufacturing industry and other relevant domestic and foreign studies,and has grasped that the main influencing factors of carbon emissions are energy consumption,economic development and population size,and has the knowledge that the digital economy has the effect of carbon emissions reduction,and then studies the impact of digital input on the carbon emissions of the manufacturing industry.This paper first describes the research background,research objects and methods,main contents and structural arrangements.After a relatively complete review of the relevant research,the digital input indicators are constructed using the input-output table;Secondly,based on the level of manufacturing industry segmentation,the relationship between digital input and carbon emissions of manufacturing industries in various provinces was studied.It also calculates the direct dependence of manufacturing industry on the three major digital economy supporting industries,empirically tests its specific impact,and supplements the endogenous test and robustness test of explanatory variables;Then,based on the reason that R&D investment has a certain impact on the production efficiency and energy utilization rate of the manufacturing industry,the paper explores the regulatory effect of R&D investment in the manufacturing industry on the relationship between the core explanatory variables and the explained variables.Based on the importance of energy consumption to carbon emissions and the reasons for the possible time effect of digital input,explore the interaction effect between energy consumption and core explanatory variables,the time effect of digital input,and the nonlinear relationship between digital input and industry carbon emissions;Based on the provinces and manufacturing industries with different characteristics,a more comprehensive heterogeneity analysis is carried out;Finally,based on the research conclusions and the existing policy measures,the corresponding policy recommendations are given.This study found that:(1)there is a traditional inverted U-shaped relationship between digital input and carbon emissions of the manufacturing industry.Digital input first promotes and then inhibits carbon emissions of the manufacturing industry,which is consistent with some existing research conclusions;(2)Considering the input factors alone,the increase of digital input relying only on the computer,electronic and optical equipment industry will promote the increase of industry carbon emissions;The increase of investment relying solely on the telecommunications industry will inhibit the increase of carbon emissions of manufacturing industries;The relationship between digital investment and carbon emissions of manufacturing industry,which is only based on IT and other information service industries,also presents an inverted U-shape;(3)For the manufacturing industry,the increase of R&D investment can inhibit the emission increase effect of digital investment and promote the emission reduction effect of digital investment.There is significant interaction between energy consumption and digital input on carbon emissions,and there is significant time effect and threshold effect on the impact of digital input on carbon emissions.(4)The impact of digital input on manufacturing industry by industry is heterogeneous,and different regions and industries should be treated differently according to specific conditions.Based on the research conclusions,this paper puts forward relevant suggestions: First,we should properly control the investment in digital equipment,increase the investment in telecommunications industry,IT and other information service industries,and maximize the carbon emission reduction effect of digital investment;Second,increase R&D investment in the manufacturing industry,restrain the emission increase effect of digital investment,and maximize its emission reduction effect;Third,increase investment in research and development of clean energy and use clean energy to replace coal consumption.All industries need to improve energy efficiency while controlling various consumption costs.