eprintid: 1134 rev_number: 11 eprint_status: archive userid: 6 dir: disk0/00/00/11/34 datestamp: 2012-02-20 13:43:10 lastmod: 2013-11-20 14:30:41 status_changed: 2012-02-20 13:43:10 type: article metadata_visibility: show creators_name: Bonanno, Giovanni creators_name: Caldarelli, Guido creators_name: Lillo, Fabrizio creators_name: Mantegna, Rosario Nunzio creators_id: creators_id: guido.caldarelli@imtlucca.it creators_id: creators_id: title: Topology of correlation-based minimal spanning trees in real and model markets ispublished: pub subjects: HG subjects: QC divisions: EIC full_text_status: none keywords: PACS: 89.75.Fb, 89.75.Hc, 89.65.Gh abstract: We compare the topological properties of the minimal spanning tree obtained from a large group of stocks traded at the New York Stock Exchange during a 12-year trading period with the one obtained from surrogated data simulated by using simple market models. We find that the empirical tree has features of a complex network that cannot be reproduced, even as a first approximation, by a random market model and by the widespread one-factor model. date: 2003 publication: Physical Review E volume: 68 number: 4 publisher: American Physical Society id_number: 10.1103/PhysRevE.68.046130 refereed: TRUE issn: 1539-3755 official_url: http://dx.doi.org/10.1103/PhysRevE.68.046130 related_url_url: http://arxiv.org/abs/cond-mat/0211546 citation: Bonanno, Giovanni and Caldarelli, Guido and Lillo, Fabrizio and Mantegna, Rosario Nunzio Topology of correlation-based minimal spanning trees in real and model markets. Physical Review E, 68 (4). ISSN 1539-3755 (2003)