Spatial Influence Scopes between Cities from the Multi-level Core-Periphery Perspective: The Case of Guangdong and Guangxi
通过构建评价指标体系并利用因子分析法计算城市综合实力，从多层级核心-边缘视角生成加权Voronoi图，划分广东和广西35个城市的经济影响区域，发现强弱城市间空间吸引范围扩大，强强城市间缩小，且腹地呈多层级嵌套结构。
By establishing an evaluation indexes system and using factor analysis method to calculate the city comprehensive power, this paper generates the weighted Voronoi diagram from the multi-level core-periphery perspective to delimitate the 35 cities' economic influence regions of Guangdong and Guangxi. We find that the space attractive scopes hardly change between weak-weak cities, but tend to be expanded between strong-weak cities, and shrunk between strong-strong cities. The core-periphery structure is stable. Further, to consider the cities' level difference, we analyze city economic hinterland from urban, provincial and cross-provincial level in Guangdong and Guangxi. The result shows that the hinterland is a multi-level and nested structure. Theoretically, each region should improve the connectivity to its central cities, and strengthen regional cooperation.