Investigating the Asymmetric Core/Periphery Structure of International Labor Time Flows

A New Network Approach to Studying the World-System

Keywords: World-systems theory, labor time flows, core/periphery hierarchy, network analysis, oligarchic wealth


This paper studies the core/periphery hierarchy of the capitalist world-economy in the current globalization era. The central and novel argument is that the network of international labor time flows reveals the core/periphery hierarchy of the world-economy with regard to the international division of labor. Based on the analysis of the labor time network of forty economies from the world input-output table, I find that the core/periphery structure of the world-economy has in large part remained unaltered for 1995-2009, though the asymmetry of international labor time flows decreased slightly between 2003-2009. Through regression analysis, I find that per capita income of a country is strongly associated with its command over global labor time. The regression analysis also lends evidence to the existence of oligarchic wealth. This wealth is not available to all countries, implying that the struggle of a country to improve its position in the capitalist world-economy tends to put downward pressure on the income of other countries.


Abdulsamad, Ajmal, Stacey Frederick, Andrew Guinn, and Gary Gereffi. 2015. “Pro-Poor Development and Power Asymmetries in Global Value Chains.” Center on Globalization, Governance & Competitiveness, Duke University. (

Alsamawi, Ali, Joy Murray, and Manfred Lenzen. 2014. “The Employment Footprints of Nations: Uncovering Master-Servant Relationships.” Journal of Industrial Ecology 18(1): 59-70. doi: 10.1111/jiec.12104.

Andrews, Isaiah, James H. Stock, and Liyang Sun. 2019. “Weak Instruments in Instrumental Variables Regression: Theory and Practice.” Annual Review of Economics 11: 727-753.

Arrighi, Giovanni and Jessica Drangel. 1986. “The Stratification of the World-Economy: An Exploration of the Semiperipheral Zone.” Review (Fernand Braudel Center) 10(1): 9-74.

Arrighi, Giovanni. 1990. “The Developmentalist Illusion: A Reconceptualization of the Semiperiphery.” Pp. 11-42 in Semiperipheral States in the World-Economy, edited by William Martin. New York: Greenwood Press.

Arrighi, Giovanni, Beverly Silver, and Benjamin Brewer. 2003. “Industrial Convergence, Globalization, and the Persistence of the North-South Divide.” Studies in Comparative International Development 38(1): 3-31. doi: 10.1007/BF02686319.

Babones, Salvatore. 2005. “The Country-Level Income Structure of the World-Economy.” Journal of World-Systems Research 11(1): 29-55. doi: 10.5195/JWSR.2005.392.

Barro, Robert J. 2013. “Education and Economic Growth.” Annals of Economics and Finance 14(2): 301-328.

Borgatti, Stephen P. and Martin G. Everett. 1993. “Two Algorithms for Computing Regular Equivalence.” Social Networks 15(4): 361-376.

______. 1999. “Models of Core/Periphery Structures.” Social Networks 21(4): 375-395.

Boyd, John P., William J. Fitzgerald, Matthew C. Mahutga, and David A. Smith. 2010. “Computing Continuous Core/Periphery Structures for Social Relations Data with MINRES/SVD.” Social Networks 32(2): 125-137. doi: 10.1016/j.socnet.2009.09.003.

Breiger, Ronald. 1981. “Structures of Economic Interdependence among Nations.” Pp. 353-380 in Continuities in Structural Inquiry, edited by Peter M Blaue and Robert K Merton. London: Sage Press.

Brewer, Benjamin D. 2011. “Global Commodity Chains & World Income Inequalities: The Missing Link of Inequality and the Upgrading Paradox.” Journal of World-Systems Research 17(2): 308-327. doi: 10.5195/JWSR.2011.423.

Chase-Dunn, Christopher and Bruce Lerro. 2016. Social Change: Globalization from the Stone Age to the Present. New York: Routledge.

Chase-Dunn, Christopher K. 1998. Global Formation: Structures of the World-Economy. Oxford: Rowman & Littlefield.

Clark, Rob and Jason Beckfield. 2009. “A New Trichotomous Measure of World-System Position Using the International Trade Network.” International Journal of Comparative Sociology 50(1): 5-38. doi: 10.1177/0020715208098615.

Clark, Rob. 2010. “World-System Mobility and Economic Growth, 1980-2000.” Social Forces 88(3): 1123-1151.

Clelland, Donald A. 2014. “The Core of the Apple: Degrees of Monopoly and Dark Value in Global Commodity Chains.” Journal of World-Systems Research 20(1):82-111. doi: 10.5195/JWSR.2014.564.

Emmanuel, Arghiri. 1972. Unequal Exchange: A Study of the Imperialism of Trade. New York: Monthly Review Press.

Foster, John Bellamy. 2019. “Late Imperialism: Fifty Years after Harry Magdoff’s the Age of Imperialism.” Monthly Review 71(3): 1-19.

Gereffi, Gary, John Humphrey, and Timothy Sturgeon. 2005. “The Governance of Global Value Chains.” Review of International Political Economy 12(1): 78-104. doi: 10.1080/09692290500049805.

Gereffi, Gary. 1996. “Global Commodity Chains: New Forms of Coordination and Control among Nations and Firms in International Industries.” Competition & Change 1(4): 427-439. doi: 10.1177/102452949600100406.

Grell-Brisk, Marilyn. 2017. “China and Global Economic Stratification in an Interdependent World.” Palgrave Communications 3: 17087.

Hagiwara, Taiji. 2017. “Labor Value and Exploitation in the Global Economy.” Pp. 15-37 in Return of Marxian Macro-Dynamics in East Asia, edited by Masao Ishikura, Seongjin Jeong and Minqi Li. Bingley, UK: Emerald Publishing Limited.

Harrod, Roy F. 1958. “The Possibility of Economic Satiety: Use of Economic Growth for Improving the Quality of Education and Leisure.” Pp. 207-213 in Problems of United States Economic Development, 1. New York: Committee for Economic Development.

Hummels, David, Jun Ishii, and Kei-Mu Yi. 2001. “The Nature and Growth of Vertical Specialization in World Trade.” Journal of International Economics 54(1): 75-96.

Hummels, David, Dana Rapoport, and Kei-Mu Yi. 1998. “Vertical Specialization and the Changing Nature of World Trade.” Economic Policy Review 4(2): 79-99.

Ignatenko, Anna, Faezeh Raei, and Borislava Mircheva. 2019. “Global Value Chains: What Are the Benefits and Why Do Countries Participate?” IMF Working Papers. (

Johnson, Robert C. and Guillermo Noguera. 2012. “Accounting for Intermediates: Production Sharing and Trade in Value Added.” Journal of International Economics 86(2): 224-236.

Kentor, Jeffrey. 2008. “The Divergence of Economic and Coercive Power in the World-economy 1960 to 2000: A Measure of Nation-State Position.” Institute for Research on World-Systems Working Paper #46.

Kick, Edward L. and Byron L. Davis. 2001. “World-System Structure and Change: an Analysis of Global Networks and Economic Growth across Two Time Periods.” American Behavioral Scientist 44(10): 1561-1578.

Koopman, Robert, Zhi Wang, and Shang-Jin Wei. 2014. “Tracing Value-Added and Double Counting in Gross Exports.” American Economic Review 104(2): 459-494.

Krugman, Paul. 1979. “A Model of Innovation, Technology Transfer, and the World Distribution of Income.” The Journal of Political Economy 87(2): 253-266. doi: 10.1086/260755.

Lenin, Vladimir Ilyich. 1999. Imperialism: The Highest Stage of Capitalism. Chippendale, NSW: Resistance Books.

Lenzen, M., D. Moran, K. Kanemoto, B. Foran, L. Lobefaro, and A. Geschke. 2012. “International Trade Drives Biodiversity Threats in Developing Nations.” Nature 486(7401): 109-112.

Leon, Carol Boyd. 1981. “The Employment-Population Ratio: Its Value in Labor Force Analysis.” Monthly Labor Review 104: 36-45.

Lewis, W. Arthur. 1954. “Economic Development with Unlimited Supplies of Labour.” The Manchester School 22(2): 139-191. doi: 10.1111/j.1467-9957.1954.tb00021.x.

Lloyd, Paulett, Matthew C. Mahutga, and Jan De Leeuw. 2009. “Looking Back and Forging Ahead: Thirty Years of Social Network Research on the World-System.” Journal of World-Systems Research 15(1): 48-85.

Mahutga, Matthew C. 2006. “The Persistence of Structural Inequality? A Network Analysis of International Trade, 1965-2000.” Social Forces 84(4): 1863-1889.

Mahutga, Matthew C. and David A. Smith. 2011. “Globalization, the Structure of the World Economy and Economic Development.” Social Science Research 40(1): 257-272.

Mahutga, Matthew C., Roy Kwon, and Garrett Grainger. 2011. “Within-Country Inequality and the Modern World-System: A Theoretical Reprise and Empirical First Step.” Journal of World-Systems Research 17(2): 279-307.

Marx, Karl. 1976. Capital Volume 1: A Critique of Political Economy. London: Penguin.

Nemeth, Roger J. and David A. Smith. 1985. “International Trade and World-System Structure: A Multiple Network Analysis.” Review (Fernand Braudel Center) 8(4): 517-560.

Prell, Christina, Kuishuang Feng, Laixiang Sun, Martha Geores, and Klaus Hubacek. 2014. “The Economic Gains and Environmental Losses of US Consumption: A World-Systems and Input-Output Approach.” Social Forces 93(1): 405-428.

Rodrik, Dani. 2012. The Globalization Paradox: Democracy and the Future of the World Economy. New York: W.W. Norton & Co.

Ross, Robert J. S. and Kent C. Trachte. 1990. Global Capitalism: The New Leviathan. Albany: State University of New York Press.

Rossem, Ronan Van. 1996. “The World System Paradigm as General Theory of Development: A Cross-National Test.” American Sociological Review 61(3): 508-527. doi: 10.2307/2096362.

Simas, Moana, Richard Wood, and Edgar Hertwich. 2015. “Labor Embodied in Trade: The Role of Labor and Energy Productivity and Implications for Greenhouse Gas Emissions.” Journal of Industrial Ecology 19(3): 343-356.

Smith, David A. and Douglas R. White. 1992. “Structure and Dynamics of the Global Economy: Network Analysis of International Trade 1965-1980.” Social Forces 70(4): 857-893.

Smith, David A. 2017. “World-System Zones in the 21st Century: Beyond Core and Periphery, Who Fits Where?” Pp. 3-17 in Global Inequalities in World-Systems Perspective, edited by Manuela Boatca, Andrea Komlosy and Hans-Heinrich Nolte. New York: Routledge.

Smith, John. 2012. “The GDP Illusion: Value Added Versus Value Capture.” Monthly Review 64(3): 86-102. doi: 10.14452/MR-064-03-2012-07_6.

Snyder, David and Edward L. Kick. 1979. “Structural Position in the World System and Economic Growth, 1955-1970: A Multiple-Network Analysis of Transnational Interactions.” American Journal of Sociology 84(5): 1096-1126.

Timmer, Marcel P., Erik Dietzenbacher, Bart Los, Robert Stehrer, and Gaaitzen de Vries. 2015. “An Illustrated User Guide to the World Input-Output Database: The Case of Global Automotive Production.” Review of International Economics 23(3): 575-605.

Todaro, Michael P. and Stephen C. Smith. 2015. Economic Development. Harlow, England: Pearson Education Limited.

Vernon, Raymond. 1966. “International Investment and International Trade in the Product Cycle.” The Quarterly Journal of Economics 80(2): 190-207. doi: 10.2307/1880689.

Wallerstein, Immanuel. 1974. “The Rise and Future Demise of the World Capitalist System: Concepts for Comparative Analysis.” Comparative Studies in Society and History 16(4): 387-415.

______. 1988. “Development: Lodestar or Illusion?” Economic and Political Weekly 23(39): 2017-2023.

Wang, Zhi, Shang-Jin Wei, Xinding Yu, and Kunfu Zhu. 2017. “Measures of Participation in Global Value Chains and Global Business Cycles.” National Bureau of Economic Research Working Paper Series No. 23222. doi: 10.3386/w23222.

Wasserman, Stanley and Katherine Faust. 1994. Social Network Analysis: Methods and Applications. Cambridge: Cambridge University Press.

Wiedmann, Thomas and Manfred Lenzen. 2018. “Environmental and Social Footprints of International Trade.” Nature Geoscience 11(5): 314-321.

World Bank and World Trade Organization. 2019. Global Value Chain Development Report 2019: Technological Innovation, Supply Chain Trade, and Workers in a Globalized World. Washington D.C.: World Bank Group.

Yu, Yang, Kuishuang Feng, and Klaus Hubacek. 2014. “China's Unequal Ecological Exchange.” Ecological Indicators 47(C): 156-163. doi: 10.1016/j.ecolind.2014.01.044.

How to Cite
Zhao, J. (2021). Investigating the Asymmetric Core/Periphery Structure of International Labor Time Flows: A New Network Approach to Studying the World-System. Journal of World-Systems Research, 27(1), 231-264.