Universal scaling behaviour in weighted trade networks |
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Authors: | W Q Duan |
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Institution: | (1) School of Business Administration, Zhejiang Normal University, Jinhua, 321004, P.R. China |
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Abstract: | Identifying universal patterns in complex economic
systems can reveal the dynamics and organizing principles underlying the
process of system evolution. We investigate the scaling behaviours that have
emerged in the international trade system by describing them as a series of
evolving weighted trade networks. The maximum-flow spanning trees (constructed by maximizing the total
weight of the edges) of these networks exhibit two universal scaling
exponents: (1) topological scaling exponent η = 1.30 and (2) flow
scaling exponent ζ = 1.03. |
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Keywords: | 89 75 Da Systems obeying scaling laws 89 75 Hc Networks and genealogical trees 89 65 Gh Economics econophysics financial markets business and management |
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