eprintid: 1543
rev_number: 12
eprint_status: archive
userid: 6
dir: disk0/00/00/15/43
datestamp: 2013-04-15 13:48:49
lastmod: 2016-04-07 09:38:58
status_changed: 2013-04-15 13:48:49
type: article
metadata_visibility: show
creators_name: Delpini, Danilo
creators_name: Battiston, Stefano 
creators_name: Riccaboni, Massimo
creators_name: Gabbi, Giampaolo
creators_name: Pammolli, Fabio
creators_name: Caldarelli, Guido
creators_id: 
creators_id: 
creators_id: massimo.riccaboni@imtlucca.it
creators_id: 
creators_id: f.pammolli@imtlucca.it
creators_id: guido.caldarelli@imtlucca.it
title: Evolution of controllability in interbank networks
ispublished: pub
subjects: HA
subjects: HB
subjects: QA
subjects: QC
divisions: EIC
full_text_status: public
abstract: The Statistical Physics of Complex Networks has recently provided new theoretical tools for policy makers. Here we extend the notion of network controllability to detect the financial institutions, i.e. the drivers, that are most crucial to the functioning of an interbank market. The system we investigate is a paradigmatic case study for complex networks since it undergoes dramatic structural changes over time and links among nodes can be observed at several time scales. We find a scale-free decay of the fraction of drivers with increasing time resolution, implying that policies have to be adjusted to the time scales in order to be effective. Moreover, drivers are often not the most highly connected “hub” institutions, nor the largest lenders, contrary to the results of other studies. Our findings contribute quantitative indicators which can support regulators in developing more effective supervision and intervention policies.
date: 2013-04
date_type: published
publication: Scientific Reports
volume: 3
number: 1626
publisher: Nature Publishing Group
pagerange: 1-5
id_number: 10.1038/srep01626
refereed: TRUE
issn: 2045-2322
official_url: http://dx.doi.org/10.1038/srep01626
projects: EC FET Open Project “FOC” No. 255987
projects: PNR project CRISIS-Lab
citation:   Delpini, Danilo and Battiston, Stefano  and Riccaboni, Massimo and Gabbi, Giampaolo and Pammolli, Fabio and Caldarelli, Guido  Evolution of controllability in interbank networks.  Scientific Reports, 3 (1626).  pp. 1-5.  ISSN 2045-2322      (2013)  
document_url: http://eprints.imtlucca.it/1543/1/Scientific_Reports_Caldarelli_Pammolli_Riccaboni_2013.pdf