权重国际贸易网络的结构分析  

The Structural Analysis of Weighted World Trade Network

作　　者：刘宝全[1] 段文奇[2] 季建华[1] 

机构地区：[1]上海交通大学安泰经济与管理学院,上海200052 [2]浙江师范大学工商管理学院,浙江金华321004

出　　处：《上海交通大学学报》2007年第12期1959-1963,共5页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(70701030)

摘　　要：采用贸易流量值对国际贸易网络的边赋予权重,构建权重国际贸易网络,从顶点强度与度的关系、边的权重差异度、集聚性、顶点度相关性等角度对权重国际贸易网络的结构特征进行研究.通过与拓扑结构的研究结果进行比较,发现拓扑顶点度负相关而权重顶点度正相关等新现象.这表明对于经济流网络,从权重角度分析可以揭示更多的网络结构特征.This paper constituted the weighted world trade network by assigning the magnitudes of trade flows to the edges of the network, and studied the structural characteristics of weighted network from four perspectives： relations of node strength and degree, edge weight disparity, clustering and node degree correlations. The comparative analysis with topological structure discloses some new findings, such as the node degree is negatively correlative in topological structure and positively correlative in weighted structure. The results show that the analysis of weighted network can depict more information for economic flow network.

关 键 词：权重复杂网络 国际贸易网络 集聚性 度相关性 

分 类 号：N94[自然科学总论—系统科学]