Interlinkages and structural changes in cross-border liabilities: a network approach
Alessandro Spelta and
Tanya Araújo ()
No 2012/19, Working Papers Department of Economics from ISEG - School of Economics and Management, Department of Economics, University of Lisbon
We study the international interbank market through a geometrical and a topological analysis of empirical data. The geometrical analysis of the time series of cross-country liabilities shows that the systematic information of the interbank international market is contained in a space of small dimension, from which a topological characterization could be conveniently carried out. Weighted and complete networks of financial linkages across countries are developed, for which continuous clustering, degree centrality and closeness centrality are computed. The behavior of these topological coecients reveals an important modi cation acting in the financial linkages in the period 1997-2011. Here we show that, besides the generalized clustering increase, there is a persistent increment in the degree of connectivity and in the closeness centrality of some countries. These countries seem to correspond to critical locations where tax policies might provide opportunities to shift debts. Such critical locations highlight the role that speci c countries play in the network structure and helps to situates the turbulent period that has been characterizing the global nancial system since the Summer 2007 as the counterpart of a larger structural change going on for a more than one decade.
Keywords: Cross-border exposures; interbank networks; financial linkages; debt shifting (search for similar items in EconPapers)
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Working Paper: Interlinkages and structural changes in cross-border liabilities: a network approach (2012)
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Persistent link: http://EconPapers.repec.org/RePEc:ise:isegwp:wp192012
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