英文标题:
《Global Value Trees》
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作者:
Zhen Zhu, Michelangelo Puliga, Federica Cerina, Alessandro Chessa,
Massimo Riccaboni
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最新提交年份:
2014
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英文摘要:
The fragmentation of production across countries has become an important feature of the globalization in recent decades and is often conceptualized by the term, global value chains (GVCs). When empirically investigating the GVCs, previous studies are mainly interested in knowing how global the GVCs are rather than how the GVCs look like. From a complex networks perspective, we use the World Input-Output Database (WIOD) to study the global production system. We find that the industry-level GVCs are indeed not chain-like but are better characterized by the tree topology. Hence, we compute the global value trees (GVTs) for all the industries available in the WIOD. Moreover, we compute an industry importance measure based on the GVTs and compare it with other network centrality measures. Finally, we discuss some future applications of the GVTs.
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中文摘要:
近几十年来,各国之间生产的分散已成为全球化的一个重要特征,通常被称为全球价值链(GVC)。在对全球价值链进行实证研究时,之前的研究主要是想知道全球价值链是如何全球化的,而不是全球价值链的样子。从复杂网络的角度,我们使用世界投入产出数据库(WIOD)来研究全球生产系统。我们发现,行业层面的全球价值链确实不是链式的,但更具有树状拓扑的特征。因此,我们计算了WIOD中所有可用行业的全球价值树(GVT)。此外,我们计算了一个基于GVT的行业重要性度量,并将其与其他网络中心度度量进行了比较。最后,我们讨论了GVT的一些未来应用。
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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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