Abstract

http://ssrn.com/abstract=1341363
 
 

References (8)



 
 

Citations (2)



 


 



Extreme Risk Management


Lisa R. Goldberg


University of California, Berkeley; Aperio Group

Michael Y. Hayes


MSCI Inc.

Jose Menchero


MSCI Barra

Indrajit Mitra


University of Michigan, Stephen M. Ross School of Business

February 17, 2009

MSCI Barra Research Paper No. 2009-4

Abstract:     
Quantitative risk management relies on a constellation of tools that are used to analyze portfolio risk. We develop the standard toolkit, which includes betas, risk budgets and correlations, in a general, coherent, mnemonic framework centered around marginal risk contributions. We apply these tools to generate side-by-side analyses of volatility and expected shortfall, which is a measure of average portfolio excess of value-at-risk. We focus on two examples whose importance is highlighted by the current economic crisis. By examining downside protection provided by an out-of-the-money put option we show that the diversification benefit of the option is greater for a risk measure that is more highly concentrated in the tail of the distribution. By comparing two-asset portfolios that are distinguished only by the likelihood of coincident extreme events, we show that expected shortfall measures market contagion in a way that volatility cannot.

Number of Pages in PDF File: 16

Keywords: risk management, quantitative extreme


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Date posted: February 12, 2009 ; Last revised: February 19, 2009

Suggested Citation

Goldberg, Lisa R. and Hayes, Michael Y. and Menchero, Jose and Mitra , Indrajit, Extreme Risk Management (February 17, 2009). MSCI Barra Research Paper No. 2009-4. Available at SSRN: http://ssrn.com/abstract=1341363 or http://dx.doi.org/10.2139/ssrn.1341363

Contact Information

Lisa R. Goldberg (Contact Author)
University of California, Berkeley ( email )
Department of Statistics
367 Evans Hall
Berkeley, CA 94720-3860
United States
Aperio Group ( email )
3 Harbor Drive
Suite 315
Sausalito, CA 94965
United States
Michael Y. Hayes
MSCI Inc. ( email )
2100 Milvia St.
Berkeley, CA 94704
United States
Jose Menchero
MSCI Barra ( email )
555 California Street, Suite 1400
San Francisco, CA 94104
United States
Indrajit Mitra
University of Michigan, Stephen M. Ross School of Business ( email )
701 Tappan Street
Ann Arbor, MI MI 48109
United States
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