Research On The Economic Relations Network Structure Of Eastern China’s Cities And Influencing Factors

In recent years,the overall economic performance of China has been stable and progressing.As the leading region in China’s reform and opening up and economic development,the eastern region has not only maintained its own rapid economic growth over the years,but also played an important role in the national economic development.In this context,this paper chooses to study the economic relations between cities in eastern China,and analyzes the internal and external economic influences and influencing factors of Beijing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta.Based on the analysis results,the paper discusses the internal correlation of the economic development of the three major urban agglomerations and their influence on the surrounding cities,and further analyzes its influencing factors,thus further exerting the leading role of the eastern region and providing reference for the formulation of relevant economic policies.This paper first conducts the Granger causality test on the time series of eastern cities in China,establishes an economic relational network model based on the significant relationship,and analyzes the characteristics of the network.From the point of view of degree,the paper analyzes and finds the cities with more influence or connection with other cities;and analyzes the cities those play the role of bridge from the point of view of intermediary centrality;and then analyzes the cities with high agglomeration from the point of view of network agglomeration.And make the suggestion that by taking advantage of the correlation of economic development among cities and exerting the intermediary function and agglomeration effect of these cities,the rapid and stable development of their economy can be promoted.Then the eastern region is divided into eight subgroups by using block model method.According to the characteristics of the subgroup,the subgroups are divided into four types of plates,including two-way overflow plate,main beneficial plate,net overflow plate and economic man plate,and the conduction paths between subgroups are analyzed.As the urban agglomerations are not only the products of the economic development of the city,they are also the economies that have the greatest impact on the economic development of the city.Therefore,we studied the internal relations between Beijing-Tianjin-Hebei,Yangtze River Delta,and Pearl River Delta urban agglomerations and their impact on surrounding cities,and found that some cities within the three major urban agglomerations have great economic influence,but there are still some cities need to strengthen their economic association with other cities.On the basis of this,the influence factors of economic relevance of key cities are analyzed by QAP method,and it is found that the neighboring relations is no longer an important factor to produce economic relations.In the influence of the Beijing-Tianjin-Hebei urban agglomeration on the surrounding areas,the similarity of industrial structure is the most important factor to produce the economic relation,and the similarity of investment consumption structure,industrial structure and economic openness can explain the relations of 74.4%.The influence of the investment and consumption structure and the economic openness is relatively high in the Yangtze River Delta Urban agglomeration,the similarity of investment consumption structure,industrial structure and economic openness can only explain38.3% of the relations,which is also the difference between the development model of two urban agglomerations.