Drożdż, S.; Górski, A. Z.; Kwapień, J. - In: The European Physical Journal B - Condensed Matter and … 58 (2007) 4, pp. 499-502
World currency network constitutes one of the most complex structures that is associated with the contemporary civilization. On a way towards quantifying its characteristics we study the cross correlations in changes of the daily foreign exchange rates within the basket of 60 currencies in the...