Shareholding Networks and Centrality: An Application to the Italian Financial Market

M. D'Errico (), R. Grassi (), S. Stefani () and A. Torriero ()
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M. D'Errico: Dipartimento di Metodi Quantitativi per le Scienze Economiche ed Aziendali Universita degli Studi di Milano — Bicocca
R. Grassi: Dipartimento di Metodi Quantitativi per le Scienze Economiche ed Aziendali Universita degli Studi di Milano — Bicocca
S. Stefani: Dipartimento di Metodi Quantitativi per le Scienze Economiche ed Aziendali Universita degli Studi di Milano — Bicocca
A. Torriero: Finanza matematica e Econometria Universita Cattolica del Sacro Cuore di Milano

A chapter in Networks, Topology and Dynamics, 2009, pp 215-228 from Springer

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.

Keywords: Centrality Measure; Betweenness Centrality; External Shock; High Betweenness; Industrial Group (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:lnechp:978-3-540-68409-1_11

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DOI: 10.1007/978-3-540-68409-1_11

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