World Input-Output Network

Federica Cerina, Zhen Zhu (), Alessandro Chessa () and Massimo Riccaboni ()
Additional contact information
Federica Cerina: Department of Physics, University of Cagliari
Zhen Zhu: IMT School for Advanced Studies Lucca
Alessandro Chessa: IMT School for Advanced Studies Lucca

No 6/2014, Working Papers from IMT School for Advanced Studies Lucca

Abstract: 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 ows 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 coeficient, 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.

Keywords: Complex Networks; Input-Output; PageRank Centrality; Community Detection (search for similar items in EconPapers)
JEL-codes: C67 F10 F15 (search for similar items in EconPapers)
Pages: 27 pages
Date: 2014-07, Revised 2014-07
New Economics Papers: this item is included in nep-cmp, nep-geo, nep-hme, nep-int, nep-net and nep-tid
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Published in EIC working paper series

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http://eprints.imtlucca.it/2230/1/EIC_WP_6_2014.pdf First version, 2014 (application/pdf)

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Working Paper: World Input-Output Network (2014)
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