Impact of the Topology of Global Macroeconomic Network on the Spreading of Economic Crises

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Throughout economic history, the global economy has experienced recurring crises. The persistent recurrence of such economic crises calls for an understanding of their generic features rather than treating them as singular events. The global economic system is a highly complex system and can best be viewed in terms of a network of interacting macroeconomic agents. In this regard, from the perspective of collective network dynamics, here we explore how the topology of the global macroeconomic network affects the patterns of spreading of economic crises. Using a simple toy model of crisis spreading, we demonstrate that an individual country's role in crisis spreading is not only dependent on its gross macroeconomic capacities, but also on its local and global connectivity profile in the context of the world economic network. We find that on one hand clustering of weak links at the regional scale can significantly aggravate the spread of crises, but on the other hand the current network structure at the global scale harbors higher tolerance of extreme crises compared to more globalized random networks. These results suggest that there can be a potential hidden cost in the ongoing globalization movement towards establishing less-constrained, trans-regional economic links between countries, by increasing vulnerability of the global economic system to extreme crises.
Publisher
PUBLIC LIBRARY SCIENCE
Issue Date
2011-03
Language
English
Article Type
Article
Citation

PLOS ONE, v.6, no.3

ISSN
1932-6203
DOI
10.1371/journal.pone.0018443
URI
http://hdl.handle.net/10203/207236
Appears in Collection
RIMS Journal Papers
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