Regional Economic Linkages and Evolution along the New Western Land and Sea Corridor

: In order to study the degree of economic linkages among western regions and promote coordinated development among regions. Based on the economic development of 13 regions in 2000, 2010 and 2019, the article uses a modified gravity model to measure the strength of economic linkages in each region, and then analyzes the economic network structure of the regions along the Western Land and Sea New Corridor from three aspects: network density, core-edge relationship and multidimensional centrality through social network analysis methods. The results show that, firstly, the amount of economic ties among the 13 regions along the Western Land and Sea Corridor is low, but the overall trend is one of rapid growth, and the regions are becoming more and more closely connected. Secondly, the density of linked networks in the 13 regions along the New Western Land and Sea Corridor is steadily increasing, with cities in the core and peripheral areas evolving and being influenced by national policies, and the phenomenon of multiple cores coming to the fore. Finally, the rise of non-core regions, the status of core regions is constantly diluted, and the unevenness of the structure of the economic linkage network is improved. And suggestions are made to promote the coordinated economic development between regions.