Evolution and structural effect of spatial correlation network of intelligent logistics efficiency in China
Selecting 31 provinces in China from 2011 to 2020 as the research objects,the undesirable output model was used to calculate the intelligent logistics efficiency;the modified gravity model was introduced to construct the spatial correlation network of intelligent logistics efficiency;the social network analysis method was used to explore the characteristics of the evolution of the spatial correlation network structure of intelligent logistics efficiency;and the stepwise linear regression method was used to explore the impact of the structure of the intelligent logistics network on its efficiency.The results show that:1)The spatial connection of intelligent logistics efficiency among provinces in China is not constrained by their geographical location,but the overall network density is low and connection effect remains insufficient.The network displays high efficiency,with too many redundant links between the provinces.The network degree depicts a gradual and stable trend and the connection between provinces is relatively stable.2)During the study period,the overall change of each centrality index is slow.Jiangsu,Shandong and Guangdong were at the core of the network,and had strong communication ability with other provinces in the spatial correlation network of intelligent logistics efficiency.The intelligent logistics efficiency of China displays an obvious characteristic of club convergence,showing that the provinces in the lagging area of the initial development of intelligent logistics are still lagging behind in the subsequent development.3)The"core-edge"characteristics of China's provincial intelligent logistics efficiency are obvious,and the core regions are concentrated in the eastern and central regions and the intensity of interaction between provinces has gradually strengthened over time.4)From the global network structure effect,network density and network degree have a significant impact on the intelligent logistics eficiency.From the individual structure effect,closeness centrality,point-out degree and betweenness centrality have a significant impact on the intelligent logistics efficiency.The research could provide reference for exploring the network relationship and policy formulation of logistics industry.
万方数据
维普
