Research On Interregional Industrial Linkages In China Based On Input-output Perspective

The COVID-19 epidemic’s outbreak and its worldwide propagation have had a tremendous effect on the global economic landscape.As a result of global economic integration,China’s economy has been more vulnerable to the fluctuations of the global economy,and its commerce with the world has been reduced.Under the continuous impact and influence of the epidemic,China’s industrial chain has also been blocked frequently,and even faced the danger of breaking.In the future,while participating in economic globalization,China will focus its development on the internal circulation construction of the domestic industrial system,and the key to maintaining the domestic economic circulation is to establish a stable and smooth industrial circulation system.Each region of China has different industrial advantages,and different industries have different positions in the industrial network of different regions.By fostering the building of China’s regional industrial association network,uncovering the data features of industrial association between regions,and creating a steady economic flow,China can better manage the unpredictable international environment and attain a dynamic equilibrium of society,economy,and environment in the future..This paper first amalgamates the interregional intermediate input matrix and the final use matrix to form the interregional trade matrix,based on the data from the interregional input-output table.and studies and analyzes the current situation of interregional industrial linkages in China from the perspective of the structural characteristics of regional industrial development and the measurement of interregional industrial integration.It is found that the current growth of China’s total output mainly depends on the intra-regional market,The contribution of inter-provincial trade between regions is relatively low,and the overall level of domestic market integration is relatively low,showing the characteristics of deterioration first and then improvement.Then,the industrial data in the regional input-output table are classified and consolidated,the complex network analysis method is applied to the input-output system,and the interregional industrial association network is constructed.The interregional economic exchange and regional industrial association in China are measured and analyzed from the perspective of region and industry.The Page Rank centrality is used to measure that Guangdong,Zhejiang and Jiangsu are the core areas of the industrial network,The core industry in the domestic industrial network is mainly manufacturing;Calculate the matching index of the internal linkage of the domestic input-output network to examine its overall characteristics,and find that the domestic industrial linkage is characterized by "same-attribute attraction";After drawing the intensity distribution map of the industrial network,it is found that the left side of China’s internal industrial connection distribution is increasingly obvious;After selecting modular optimization to conduct community detection on the domestic input-output network,it is found that the overall industrial network is gradually showing the trend of aggregation;Based on the strongest path method,the construction industry,the core industry in the industrial network,is the first to build the strongest industrial chain in China.Exploring the data characteristics of interregional industrial linkages,this paper provides a basis and reference for China’s industrial development policy formulation.The manufacturing industry is the primary one,while the service industry is gradually growing.