Regional economic integration via detection of circular flow in international value-added network.

Global value chains are formed through value-added trade, and some regions promote economic integration by concluding regional trade agreements to promote these chains. However, it has not been established to quantitatively assess the scope and extent of economic integration involving various sector...

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Autores principales:	Sotaro Sada, Yuichi Ikeda
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/04384961905446bbaaa4695f6a9a01f1
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spelling	oai:doaj.org-article:04384961905446bbaaa4695f6a9a01f12021-12-02T20:14:57ZRegional economic integration via detection of circular flow in international value-added network.1932-620310.1371/journal.pone.0255698https://doaj.org/article/04384961905446bbaaa4695f6a9a01f12021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255698https://doaj.org/toc/1932-6203Global value chains are formed through value-added trade, and some regions promote economic integration by concluding regional trade agreements to promote these chains. However, it has not been established to quantitatively assess the scope and extent of economic integration involving various sectors in multiple countries. In this study, we used the World Input-Output Database to create a cross-border sector-wise network of trade in value-added (international value-added network) covering the period of 2000-2014 and evaluated them using network science methods. By applying Infomap to the international value-added network, we confirmed two regional communities: Europe and the Pacific Rim. We applied Helmholtz-Hodge decomposition to the value-added flows within the region into potential and circular flows, and clarified the annual evolution of the potential and circular relationships between countries and sectors. The circular flow component of the decomposition was used to define an economic integration index. Findings confirmed that the degree of economic integration in Europe declined sharply after the economic crisis in 2009 to a level lower than that in the Pacific Rim. The European economic integration index recovered in 2011 but again fell below that of the Pacific Rim in 2013. Moreover, sectoral economic integration indices suggest what Europe depends on Russia in natural resources makes the European economic integration index unstable. On the other hand, the indices of the Pacific Rim suggest the steady economic integration index of the Pacific Rim captures the stable global value chains from natural resources to construction and manufactures of motor vehicles and high-tech products.Sotaro SadaYuichi IkedaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0255698 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sotaro Sada Yuichi Ikeda Regional economic integration via detection of circular flow in international value-added network.
description	Global value chains are formed through value-added trade, and some regions promote economic integration by concluding regional trade agreements to promote these chains. However, it has not been established to quantitatively assess the scope and extent of economic integration involving various sectors in multiple countries. In this study, we used the World Input-Output Database to create a cross-border sector-wise network of trade in value-added (international value-added network) covering the period of 2000-2014 and evaluated them using network science methods. By applying Infomap to the international value-added network, we confirmed two regional communities: Europe and the Pacific Rim. We applied Helmholtz-Hodge decomposition to the value-added flows within the region into potential and circular flows, and clarified the annual evolution of the potential and circular relationships between countries and sectors. The circular flow component of the decomposition was used to define an economic integration index. Findings confirmed that the degree of economic integration in Europe declined sharply after the economic crisis in 2009 to a level lower than that in the Pacific Rim. The European economic integration index recovered in 2011 but again fell below that of the Pacific Rim in 2013. Moreover, sectoral economic integration indices suggest what Europe depends on Russia in natural resources makes the European economic integration index unstable. On the other hand, the indices of the Pacific Rim suggest the steady economic integration index of the Pacific Rim captures the stable global value chains from natural resources to construction and manufactures of motor vehicles and high-tech products.
format	article
author	Sotaro Sada Yuichi Ikeda
author_facet	Sotaro Sada Yuichi Ikeda
author_sort	Sotaro Sada
title	Regional economic integration via detection of circular flow in international value-added network.
title_short	Regional economic integration via detection of circular flow in international value-added network.
title_full	Regional economic integration via detection of circular flow in international value-added network.
title_fullStr	Regional economic integration via detection of circular flow in international value-added network.
title_full_unstemmed	Regional economic integration via detection of circular flow in international value-added network.
title_sort	regional economic integration via detection of circular flow in international value-added network.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/04384961905446bbaaa4695f6a9a01f1
work_keys_str_mv	AT sotarosada regionaleconomicintegrationviadetectionofcircularflowininternationalvalueaddednetwork AT yuichiikeda regionaleconomicintegrationviadetectionofcircularflowininternationalvalueaddednetwork
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Regional economic integration via detection of circular flow in international value-added network.

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