On the topological properties of the world trade web: A weighted network analysis
On the topological properties of the world trade web: A weighted network analysis
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DOI：
10.1016/j.physa.2008.01.050
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发表时间：
2008-06-15
影响因子：
3.3
通讯作者：
Schiavo, Stefano
中科院分区：
文献类型：
--
作者：
Fagiolo, Giorgio;Reyes, Javier;Schiavo, Stefano
本文采用加权网络分析方法研究了世界贸易网的拓扑特性及其随时间的演变。我们表明，WTW作为一个加权网络，显示出与使用传统二元网络方法获得的统计特征非常不同。特别是，我们发现：(1)大多数现有链接与弱贸易关系相关；（ii）加权WTW仅为弱不分类；（三）贸易关系越紧密的国家聚集程度越高。(C) 2008 Elsevier B.V.版权所有
This paper studies the topological properties of the World Trade Web (WTW) and its evolution over time by employing a weighted-network analysis. We show that the WTW, viewed as a weighted network, displays statistical features that are very different from those obtained by using a traditional binary-network approach. In particular, we find that: (i) the majority of existing links are associated to weak trade relationships; (ii) the weighted WTW is only weakly disassortative; (iii) countries holding more intense trade relationships are more clustered. (C) 2008 Elsevier B.V. All rights reserved.