On the topology of the world exchange arrangements web

Details On the topology of the world exchange arrangements web On the topology of the world exchange arrangements web

2004-07-11

arxiv.org/abs/physics/0407046v1

Physics

Physics and Society

11 pages, 5 figures, 2 tables, accepted by Physica A

Scientific paper

10.1016/j.physa.2004.03.093

Exchange arrangements among different countries over the world are foundations of the world economy, which generally stand behind the daily economic evolution. As the first study of the world exchange arrangements web (WEAW), we built a bipartite network with countries as one type of nodes and currencies as the other, and found it to have a prominent scale-free feature with a power-law degree distribution. In a further empirical study of the currency section of the WEAW, we calculated the clustering coefficients, average nearest-neighbors degree, and average shortest distance. As an essential economic network, the WEAW is found to be a correlated disassortative network with a hierarchical structure, possessing a more prominent scale-free feature than the world trade web (WTW).

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