英文标题:
《World Input-Output Network》
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作者:
Federica Cerina, Zhen Zhu, Alessandro Chessa, Massimo Riccaboni
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最新提交年份:
2014
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英文摘要:
Economic systems, traditionally analyzed as almost independent national systems, are increasingly connected on a global scale. Only recently becoming available, the World Input-Output Database (WIOD) is one of the first efforts to construct the multi-regional input-output (MRIO) tables at the global level. By viewing the world input-output system as an interdependent network where the nodes are the individual industries in different economies and the edges are the monetary goods flows between industries, we study the network properties of the so-called world input-output network (WION) and document its evolution over time. We are able to quantify not only some global network properties such as assortativity, clustering coefficient, and degree and strength distributions, but also its subgraph structure and dynamics by using community detection techniques. Over time, we detect a marked increase in cross-country connectivity of the production system, only temporarily interrupted by the 2008-2009 crisis. Moreover, we find a growing input-output regional community in Europe led by Germany and the rise of China in the global production system. Finally, we use the network-based PageRank centrality and community coreness measure to identify the key industries and economies in the WION and the results are different from the one obtained by the traditional final-demand-weighted backward linkage measure.
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中文摘要:
传统上被分析为几乎独立的国家体系的经济体系,在全球范围内的联系越来越紧密。直到最近,世界投入产出数据库(WIOD)才成为在全球层面构建多区域投入产出(MRIO)表的首批努力之一。通过将世界投入产出系统视为一个相互依赖的网络,其中节点是不同经济体中的各个行业,边缘是行业之间的货币商品流,我们研究了所谓的世界投入产出网络(WION)的网络特性,并记录了其随时间的演化。通过社区检测技术,我们不仅可以量化一些全局网络特性,如分类性、聚类系数、度和强度分布,还可以量化其子图结构和动态。随着时间的推移,我们发现生产系统的跨国连接显著增加,只是暂时被2008-2009年的危机中断。此外,我们发现,在德国和中国在全球生产体系中的崛起领导下,欧洲的投入产出区域共同体正在不断增长。最后,我们使用基于网络的PageRank中心度和社区核心度度量来识别WION中的关键行业和经济体,其结果不同于传统的最终需求加权后向联系度量。
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分类信息:
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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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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