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Global Value Trees

Zhu, Zhen and Puliga, Michelangelo and Cerina, Federica and Chessa, Alessandro and Riccaboni, Massimo Global Value Trees. PloS One, 10 (5). pp. 1-17. ISSN 1932-6203 (2015)

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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 in- terested 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 evolution of the global production system. We find that the industry-level GVCs are in- deed 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 net- work centrality measures. Finally, we discuss some future applications of the GVTs.

Item Type: Article
Identification Number: 10.1371/journal.pone.0126699
Projects: CRISIS Lab, MULTIPLEX 317532, SIMPOL 610704
Subjects: H Social Sciences > HB Economic Theory
H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management
Research Area: Economics and Institutional Change
Depositing User: Caterina Tangheroni
Date Deposited: 20 May 2015 12:04
Last Modified: 20 May 2015 12:04
URI: http://eprints.imtlucca.it/id/eprint/2689

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