Optimization of Regional City Economic Gravity Network Based on Optimal Tree Theory

摘要

Inspired by the gravity model of spatial economics, this paper sets up an economic gravity network for the cities in the same region, and optimizes the established network by the optimal tree theory of operations research, rather than the traditional social network analysis. After that, the research method was applied to build and optimize the economic gravity network of the cities in the Yangtze River Delta, based on the key indices of these cities in 2018. On this basis, policy recommendations were provided in terms of resource utilization, sustainable design, and industrial distribution, shedding new lights on sound policy-making, rational resource flow, and integral development of the region. The research findings lay a solid theoretic basis for regional planning and national development.