Evaluation Of The Coordination Level Of The Big Data Industry Chain In The Yangtze River Economic Belt And Its Influencing Factor

The big data industry has huge development potential,and its associated drive effect is obvious,is the new engine of economic and social development.However,China’s big data industry started late,the industry chain is not complete,and the overall layout of the industry has shortcomings.Academic research on the coordinated development of the big data industry chain is also relatively lacking,and a complete industry chain is an important condition for the sustainable development of the big data industry.Therefore,exploring the connotation and composition of the big data industry chain and analyzing the coupling and coordination relationship between related industries and elements in the industry chain can not only supplement the research on the coordinated development of the big data industry chain but also certain reference significance and practical value for promoting the stable and efficient development of big data industry chain and improving the development level of the regional big data industry.This thesis firstly explores the connotation and composition of the big data industry chain,draws the structural framework diagram of the big data industry chain according to the data life cycle and the position of related enterprises in the chain,and constructs the evaluation index system of the big data industry chain from three levels of the industry chain: the basic layer,the analysis layer and the application layer;again,taking the Yangtze River economic belt as an example,calculates the development level of the big data industry chain according to the evaluation index system,while treating the big data At the same time,the big data industry chain is regarded as a complete coupling system,and the spatial correlation of the coordination level of the big data industry chain is explored;finally,the spatio-temporal geographically weighted regression model is used to explore the spatio-temporal variability of the influence of relevant factors on the coordination level of the big data industry chain in the Yangtze River Economic Zone,and countermeasure suggestions to promote the coordinated development of the big data industry are proposed.The following conclusions are obtained:(1)The development level of the big data industry chain in the Yangtze River Economic Zone as a whole shows an increasing trend during 2013-2020,but there is significant spatial variability and an increasing trend from upstream to downstream along the Yangtze River Economic Zone,and this uneven development trend gradually increases.(2)From the perspective of coupling and coordination level,the coupling degree of the big data industry chain in the Yangtze River Economic Zone is mostly at a high level of coupling,and a certain degree of synchronization can be maintained in the development.In terms of the coordination degree,the overall coordination level shows an upward trend but the upward trend gradually slows down after 2017,showing a decreasing trend along the upstream to downstream in space,but the growth rate shows an increasing trend along the upstream to downstream.In addition,the gap between regions still exists and is gradually expanding,which may lead to polarization in the development of the big data industry in the Yangtze River Economic Zone.(3)In terms of spatial correlation,the coordination level of the big data industry chain in the Yangtze River Economic Zone has obvious positive spatial correlation and more stable spatial dependence characteristics,but the spatial correlation keeps weakening.(4)In terms of influencing factors,the level of informatization,the degree of openness to the outside world,and the level of government financial support show a role in promoting the coordinated development of the big data industry chain in most provinces,while the index of advanced industrial structure and the level of human capital have inhibiting effects on the coordinated development.At the same time,there are obvious spatial and temporal differences in the influence of each factor on the coordinated development of the big data industry chain.Finally,based on the analysis results of each influencing factor,countermeasure suggestions for promoting the coordinated development of the big data industry chain in the Yangtze River Economic Belt are proposed.