Global Value Trees
Abstract
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.
Cite
@article{arxiv.1410.4694,
title = {Global Value Trees},
author = {Zhen Zhu and Michelangelo Puliga and Federica Cerina and Alessandro Chessa and Massimo Riccaboni},
journal= {arXiv preprint arXiv:1410.4694},
year = {2015}
}
Comments
26 pages, 6 figures. arXiv admin note: text overlap with arXiv:1407.0225