Study On The Impact Of "New Infrastructure" On Carbon Peaking And Carbon Neutrality

In order to explore the impact of the development of "new infrastructure" on the realization of the "double carbon" goal,this paper selects 16 years’ data of 30 provincial regions(excluding Hong Kong,Macao,Taiwan and Tibet)from 2005 to 2020 for empirical analysis,with "carbon emission intensity" as the explained variable and "new infrastructure" and "industrial structure upgrading" as the explanatory variable.Based on the review and summary of relevant literature at home and abroad,firstly,the carbon emission intensity of each provincial region in China in the past 16 years was calculated by using the carbon emission measurement method of IPCC,and the industrial structure advanced index was constructed to evaluate the upgrading level of industrial structure.The development level of new infrastructure was evaluated by integrating the output value of listed companies in five industries related to new infrastructure.Secondly,three weight matrices were constructed to test the spatial autocorrelation of carbon emissions,calculate the Moreland index,and analyze the spatial distribution structure.Thirdly,the dynamic panel differential GMM model is constructed to study the impact of new infrastructure on carbon emission intensity.On this basis,using the spatial Dubin model,the time fixed effect is selected to empirically analyze the impact of new infrastructure and industrial structure on carbon emissions,and the spatial spillover effect is studied.Finally,sobel test is used to explore the mediation effect.The conclusion is as follows:First,there is a significant spatial dependence of carbon emission intensity in China,and carbon emission is more concentrated when geographically adjacent.Second,the development of new infrastructure and upgrading of industrial structure will promote the reduction of carbon emissions.From the perspective of spatial effect,the level of economic development,government intervention,foreign direct investment and scientific and technological innovation all contribute to the reduction of carbon emissions.Macro tax burden,population size and urbanization level will promote the increase of carbon emissions.From the perspective of spatial spillover effect,the development level of new infrastructure will affect the carbon emission intensity of the region,and the improvement of the new infrastructure level in neighboring areas will also promote the reduction of carbon emission intensity of the region,bringing feedback effect to the spatial spillover effect generated by the development of new infrastructure.The improvement of industrial structure upgrading can also promote the reduction of carbon emission intensity in the region,but it will bring spillover effect to the improvement of carbon emission intensity in surrounding cities.Third,industrial structure upgrading has a partial intermediary effect between the realization of "new infrastructure" and "two-carbon" goals,that is,in the path of new infrastructure affecting carbon emissions,there is a new infrastructure directly affecting the reduction of carbon emissions with its own attributes.At the same time,it can indirectly reduce carbon emissions by promoting the upgrading of industrial structure.Based on the above conclusions,the following policy suggestions are given:adhere to the construction of new infrastructure and increase the investment in new infrastructure;To strengthen innovation strength,accelerate the upgrading of industrial structure,promote the innovative development of new infrastructure;We need to strengthen exchanges between cities,promote coordinated development of new digital infrastructure in cities,and promote low-carbon,green and sustainable development of regions.Figure [6] table [14] reference [54]...