Structure and Driving Factors of Spatial Association Network of the New Quality Productive Forces in the Pearl River Delta Region
Delving into the spatial correlation network structure and driving factors of enterprises'new-quality productive forces is helpful to cultivate and strengthen new drivers of economic development.This paper takes A-share listed companies in the Pearl River Delta(PRD)region as samples,utilizes the entropy method to calculate the index of enterprises'new-quality productive forces,and conducts quantitative analysis on the spatial correlation network structure and driving mechanisms of enterprises'new-quality productive forces based on the social network analysis,the density-based spatial clustering of applications with noise(DBSCAN),and the QAP non-parametric estimation method.The results indicate that:1)The new-quality productive forces of enterprises in the PRD region exhibits a dual-core spatial clustering and multi-tier grading characteristic.The first-tier high-density areas are distributed in Guangzhou and Shenzhen,the second-tier sub-high-density areas are concentrated in Zhuhai,the third-tier medium-density core areas are centered around the Guangzhou-Zhuhai line and the surrounding areas of Shenzhen,and the fourth-tier low-density core areas are mainly distributed in the inland hinterland of the PRD region.2)The spatial correlation network structure of enterprises'new-quality productive forces demonstrates the spatial characteristics of small-world,network densification,long-tail distribution,and an"axis-hub"pattern.The network density and network efficiency exhibit an N-shaped trend(rising first,then falling,and finally rising again),with the overall network connectivity being relatively high.3)The spatial correlation network structure of enterprises'new-quality productive forces has obvious regional characteristics,the number of network nodes has steadily increased and formed a"2+N"community structure through cooperation,namely two main communities centered on Guangzhou and Shenzhen,and N sub-communities centered on Zhuhai,Zhongshan,Dongguan,Huizhou,which are distributed in an n-shaped pattern around the Pearl River estuary.4)Based on the nature of the spatial correlation network of new-quality productive forces,the sample enterprises can be divided into four plates.Plate Ⅰ exhibits non-reflexive structural characteristics and the role of a"net spillover"plate.Plate Ⅱ has reflexive structural characteristics and the role of a"primary beneficiary"plate.Plate Ⅲ and plate Ⅳ both demonstrate reflexive structural characteristics and the role of"bidirectional spillover"plates.5)Enterprise size,digital transformation,innovation capability,and ESG performance are key driving factors that facilitate the formation of the spatial correlation network of enterprises'new-quality productive forces.
new quality productive forces of enterprisesspatial association networkcommunity structureblock modeldriving factorsdigital transformationPearl River Delta region
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