Shareholding Networks and Centrality: an application to the Italian financial market

Anna Torriero, Silvana Stefani, Rosanna Grassi, Marco D'Errico, M. D'Errico, R. Grassi, S. Stefani

Research output: Chapter in Book/Report/Conference proceedingChapter

21 Citations (Scopus)

Abstract

In this paper we studied the Shareholding Network (SN) embedded in the Italian Stock Market (MIB). We identified the central companies both in the role of transferring information flows and controlling companies. To this end we used betweenness and flow betweenness centrality measures, together with in and out degree. We tested the scale-free property on in and out degree, betweenness and flow betweenness centrality. The effect of external shocks to SN and the different extent on which companies react to them are measured relating asset volatility and betweenness.
Original languageEnglish
Title of host publicationNetworks,Topology and Dynamics.Theory and Applications to Economics and Social Systems. Lectures Notes in Economics and Mathematical System
Pages215-228
Number of pages14
Publication statusPublished - 2009

Publication series

NameLECTURE NOTES IN ECONOMICS AND MATHEMATICAL SYSTEMS

Keywords

  • centrality measures
  • financial market
  • networks

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