Statistical Research On Industrial Network Of Digital Economy

With the advent of digital age,digital economy industry is playing an increasingly important role in international trade competition.At present,the research on digital economy is mostly about the measurement methods of digital economy,the development status of digital economy,a series of changes under the background of digital economy,etc.For the measurement methods of digital economy industry,the current research mostly starts from the output value of digital economy or added value to prepare relevant indicators for calculation.Considering the importance of industrial network robustness in the uncertainty of the current international competitive environment,this paper measures the digital economy industry from the perspective of industrial network strength of the digital economy.On the basis of the clear concept of industrial network strength of the digital economy,a neural network model is established based on the index of product competitive advantage.By calculating the strength of relation between digital products,the paper quantifies the strength of digital economy industrial network,analyzes the cohesion,density and regional characteristics of digital economy industrial network,and analyzes the economic significance of digital economy industrial network strength.Based on the results,some suggestions are put forward for the development of our digital economy.Based on the import and export data of Chinese provincial customs from January 201 7 to December 2019,this paper calculates the competitive advantage index of digital products and builds the ADGAT neural network.The momentum spillover index between products is extracted from the relationship embedding layer to measure the strength of the relationship between products.The industrial network strength of digital economy in each province is measured by taking the mean value of the relationship strength between the digital products involved in each province.The complex network is used to measure the overall and individual characteristics of digital economy industrial network,and the spillover effect of digital economy industrial network strength among provinces is analyzed.A spatial econometric model is established to further analyze the economic significance of digital economy industrial network strength and the role of digital economy industrial network strength in regional product competitiveness.By observing the strength of digital economy industrial network in various provinces,it is found that the strength of digital economy industrial network in provinces with better comprehensive level of digitalization is at medium or strong level,which indicates that the digitalization level of provinces is related to the strength of digital economy industrial network to a certain extent.The empirical results of complex networks show that the overall digital economy industrial network in China is good in cohesion,accessibility and other aspects,and the intensity of digital economy industrial network between different provinces has significant spillover effect.Through regression analysis of spatial econometric model,it is found that there is a significant positive relationship between industrial network strength of digital economy and competitive advantage index of digital products.The stronger the industrial network strength of digital economy in a region,the stronger the competitive advantage of digital products,and the greater the competitiveness of the region in international trade of digital products.