A Study on the Economic Interdependence Between Jiangmen and Other Cities in the Pearl River Delta Urban Agglomeration

This study takes the Pearl River Delta Urban Agglomeration in 2023 as its research sample, employing principal component analysis to measure economic quality. The indicators used to assess economic quality include economic development level, economic structure, population and logistics, and degree of openness. By constructing a modified gravity model, the study analyzes the economic interdependence between Jiangmen and other cities in the Pearl River Delta Urban Agglomeration. Jiangmen ranks highest in terms of economic ties with Shenzhen, followed by Guangzhou, while their economic connections with other cities are relatively weak. Based on an analysis of the current state of economic interdependence between Jiangmen and other cities in the Pearl River Delta Urban Agglomeration, together with its existing issues, several policy recommendations are proposed.