Introducing Variety in Risk Management

We review the recently introduced concept of variety of a financial portfolio and we sketch its importance for risk control purposes. The empirical behaviour of variety, correlation, exceedance correlation and asymmetry of the probability density function of daily returns is discussed. The results obtained are compared with the ones of a one-factor model showing strengths and limitations of this model.

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Year of publication:	2001-07
Authors:	Lillo, Fabrizio ; Mantegna, Rosario N. ; Bouchaud, Jean-Philippe
Institutions:	Science & Finance

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Series:	Science & Finance (CFM) working paper archive.
Type of publication:	Book / Working Paper
Notes:	Forthcoming in Wilmmot Magazine Number 0107208
Classification:	G1 - General Financial Markets ; G14 - Information and Market Efficiency; Event Studies
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10005017970