摘要翻译:
临界现象理论的工具,即标度分析和普适性,被认为适用于大型复杂的网络结构。通过对国际贸易网络的真实数据的详细分析,我们认为链路权重分布具有近似的对数正态分布,并且在53年的时间内保持稳健性。另一个普遍特征是贸易实力与国内生产总值的幂律增长,所有国家的指数都是相似的。使用加权网络的“富裕俱乐部”系数度量,已经表明控制世界贸易一半的富裕俱乐部的规模实际上正在缩小。引力定律可以很好地描述静态网络中的社会相互作用,如人口迁移、国际贸易等,本文首次研究了一个基于引力定律的非保守动力学模型,该模型很好地再现了ITN的许多经验特征。
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英文标题:
《The International Trade Network: weighted network analysis and modelling》
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作者:
K. Bhattacharya, G. Mukherjee, J. Saramaki, K. Kaski, and S. S. Manna
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最新提交年份:
2008
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:General Finance 一般财务
分类描述:Development of general quantitative methodologies with applications in finance
通用定量方法的发展及其在金融中的应用
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一级分类:Physics 物理学
二级分类:Physics and Society 物理学与社会
分类描述:Structure, dynamics and collective behavior of societies and groups (human or otherwise). Quantitative analysis of social networks and other complex networks. Physics and engineering of infrastructure and systems of broad societal impact (e.g., energy grids, transportation networks).
社会和团体(人类或其他)的结构、动态和集体行为。社会网络和其他复杂网络的定量分析。具有广泛社会影响的基础设施和系统(如能源网、运输网络)的物理和工程。
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英文摘要:
Tools of the theory of critical phenomena, namely the scaling analysis and universality, are argued to be applicable to large complex web-like network structures. Using a detailed analysis of the real data of the International Trade Network we argue that the scaled link weight distribution has an approximate log-normal distribution which remains robust over a period of 53 years. Another universal feature is observed in the power-law growth of the trade strength with gross domestic product, the exponent being similar for all countries. Using the 'rich-club' coefficient measure of the weighted networks it has been shown that the size of the rich-club controlling half of the world's trade is actually shrinking. While the gravity law is known to describe well the social interactions in the static networks of population migration, international trade, etc, here for the first time we studied a non-conservative dynamical model based on the gravity law which excellently reproduced many empirical features of the ITN.
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PDF链接:
https://arxiv.org/pdf/0707.4343