Reference : Clusters in weighted macroeconomic networks: the EU case. Introducing the overlapping...
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Business & economic sciences : International economics
Physical, chemical, mathematical & earth Sciences : Physics
Clusters in weighted macroeconomic networks: the EU case. Introducing the overlapping index of GDP/capita fluctuation correlations
Gligor, M. [> > > >]
Ausloos, Marcel mailto [Université de Liège - ULiège > Département de physique > Département de physique > >]
European Physical Journal B -- Condensed Matter
Springer Science & Business Media B.V.
Yes (verified by ORBi)
New York
[en] GDP/capita correlations are investigated in various time windows (TW), for the time interval 1990-2005. The target group of countries is the set of 25 EU members, 15 till 2004 plus the 10 countries which joined EU later on. The TW-means of the statistical correlation coefficients are taken as the weights (links) of a fully connected network having the countries as nodes. Thereafter we de. ne and introduce the overlapping index of weighted network nodes. A cluster structure of EU countries is derived from the statistically relevant eigenvalues and eigenvectors of the adjacency matrix. This may be considered to yield some information about the structure, stability and evolution of the EU country clusters in a macroeconomic sense.
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