修正引力模型与社会网络结合分析广西经济网络结构演变

Analysis of the Evolution of Guangxi Economic Network Structure with the Combination of Modified Gravity Model and Social Network

以广西87个县级行政区为研究对象,选取2008年、2013年和2018年3个时间节点,基于修正引力模型和社会网络分析法探究广西的经济联系的网络结构及其特征,探讨10年来广西县域经济联系时空格局的演化历程,结果表明:(1)广西城市间经济联系密切程度不断提高,整体由"孤岛"型结构发展为网络型结构;(2)广西整体的区域经济发展协调程度有所增强但整体偏低,经济联系网络仍处于松散型网络的水平;(3)广西的经济网络格局属于中心城市发展带动模式,南宁市市辖区和柳州市市辖区处在广西的经济核心地位,扮演着"中介"和"桥梁"的角色。

By taking 87 county-level administrative districts in Guangxi as the research objects,this paper intercepts three time nodes in 2008,2013 and 2018,explores the network structure and its characteristics of Guangxi’s economic ties based on the revised gravity model and social network analysis method,and depicts the evolution process of the spatial-temporal pattern of Guangxi’s countylevel economic ties in the past 10 years:the close degree of economic ties among cities in Guangxi has been continuously improved,and the whole has developed from “isolated island”structure to network structure;(2)The overall coordination degree of regional economic development in Guangxi has been enhanced,but the overall level is low,and the economic contact network is still at the level of loose network;(3)Guangxi economic network pattern belongs to the development-driven mode of central cities,and Nanning and Liuzhou municipal districts play the role of“intermediary”and “bridge”in Guangxi economic core position.