TY - CHAP AV - none ED - Ben-Naim, Eli ED - Frauenfelder, Hans ED - Toroczkai, Zoltan SN - 978-3-540-22354-2 ID - eprints1118 EP - 423 SP - 399 TI - Emergence of complexity in financial networks N2 - We present here a brief summary of the various possible applications of network theory in the field of finance. Since we want to characterize different systems by means of simple and universal features, graph theory could represent a rather powerful methodology. In the following we report our activity in three different subfields, namely the board and director networks, the networks formed by prices correlations and the stock ownership networks. In most of the cases these three kind of networks display scale-free properties making them interesting in their own. Nevertheless, we want to stress here that the main utility of this methodology is to provide new measures of the real data sets in order to validate the different models. T3 - Lecture Notes in Physics A1 - Caldarelli, Guido A1 - Battiston, Stefano A1 - Garlaschelli, Diego A1 - Catanzaro, Michele UR - http://dx.doi.org/10.1007/978-3-540-44485-5_18 Y1 - 2004/// PB - Springer-Verlag T2 - Emergence of Complexity in Financial Networks ER -