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Risk Measurement, Risk Management and Capital Adequacy in Financial Conglomerates

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Author Info
Andrew Kuritzkes
Til Schuermann
Scott M. Weiner

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Abstract

Is there something special, with respect to risk and capital, about a financial conglomerate that combines banking, insurance and potentially other financial and non-financial activities? To what degree is the risk of the whole less than the sum of its parts? This paper seeks to address these questions by evaluating the risk profile of a typical banking-insurance conglomerate, highlighting the key analytical issues relating to risk aggregation, and raising policy considerations. Risk aggregation is the main analytical hurdle to arriving at a composite risk picture. We propose a "building block" approach that aggregates risk at three successive levels in an organization, (corresponding to the levels at which risk is typically managed). Empirically, diversification effects are greatest within a single risk factor (Level I), decrease at the business line level (Level II), and are smallest across business lines (Level III). Our estimates suggest that the incremental diversification benefits achievable at Level III are modest, around 5-10% reduction in capital requirements, depending on business mix.

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Paper provided by Wharton School Center for Financial Institutions, University of Pennsylvania in its series Center for Financial Institutions Working Papers with number 03-02.

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Date of creation: Nov 2002
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Handle: RePEc:wop:pennin:03-02

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Related research
Keywords: Economic capital; financial regulation; risk aggregation;

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Find related papers by JEL classification:
G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation
G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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Full references

Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Stephanou, Constantinos, 2005. "Supervision of financial conglomerates : the case of Chile," Policy Research Working Paper Series 3553, The World Bank. [Downloadable!]
  2. Benito Arruñada, 2008. "Mandatory Accounting Disclosure by Small Private Companies," Economics Working Papers 1090, Department of Economics and Business, Universitat Pompeu Fabra. [Downloadable!]
  3. Carey, Mark & Stulz, Rene M., 2005. "The Risks of Financial Institutions," Working Paper Series 2005-13, Ohio State University, Charles A. Dice Center for Research in Financial Economics. [Downloadable!]
  4. Mark Carey & Rene M. Stulz, 2005. "The Risks of Financial Institutions," NBER Working Papers 11442, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  5. Donato Masciandaro, 2006. "E Pluribus Unum? Authorities' Design in Financial Supervision: Trends and Determinants," Open Economies Review, Springer, vol. 17(1), pages 73-102, January. [Downloadable!] (restricted)
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