Abstract
Tail risk refers to the risk associated with extreme values and is often affected by extremal dependence among multivariate extremes. Multivariate tail risk, as measured by a coherent risk measure of tail conditional expectation, is analyzed for multivariate regularly varying distributions. Asymptotic expressions for tail risk are established in terms of the intensity measure that characterizes multivariate regular variation. Tractable bounds for tail risk are derived in terms of the tail dependence function that describes extremal dependence. Various examples involving Archimedean copulas are presented to illustrate the results and quality of the bounds.
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References
Albrecher H, Asmussen S, Kortschak D (2006) Tail asymptotics for the sum of two heavy-tailed dependent risks. Extremes 9:107–130
Alink S, Löwe M, Wüthrich MV (2004) Diversification of aggregate dependent risks. Insurance: Math Econom 35:77–95
Alink S, Löwe M, Wüthrich MV (2005) Analysis of the expected shortfall of aggregate dependent risks. ASTIN Bull 35(1):25–43
Alink S, Löwe M, Wüthrich MV (2007) Diversification for general copula dependence. Stat Neerl 61:446–465
Artzner P, Delbaen F, Eber JM, Heath D (1999) Coherent measures of risks. Math Financ 9:203–228
Bentahar I (2006) Tail conditional expectation for vector-valued risks. Discussion paper 2006-029, Technische Universität Berlin, Germany. http://sfb649.wiwi.hu-berlin.de
Bingham NH, Goldie CM, Teugels JL (1987) Regular variation. Cambridge University Press, Cambridge, UK
Cai J, Li H (2005) Conditional tail expectations for multivariate phase-type distributions. J Appl Probab 42:810–825
Cheridito P, Delbaen F, Klüppelberg C (2004) Coherent and convex monetary risk measures for bounded càdlàg processes. Stoch Process their Appl 112:1–22
Coles SG, Tawn JA (1991) Modelling extreme multivariate events. J R Stat Soc, B 53:377–392
Cook RD, Johnson ME (1981) A family of distributions for modelling non-elliptically symmetric multivariate data. J R Stat Soc, B 43:210–218
Delbaen F (2002) Coherent risk measure on general probability spaces. In: Sandmann K, Schönbucher PJ (eds) Advances in finance and stochastics-essays in honour of Dieter Sondermann. Springer-Verlag, Berlin, pp 1–37
Embrechts P, Neslehová J, Wüthrich MV (2009) Additivity properties for value-at-risk under Archimedean dependence and heavy-tailedness. Insurance: Math Econom 44(2):164–169
Föllmer H, Schied A(2002) Convex measures of risk and trading constraints. Finance Stoch 6:426–447
Joe H (1993) Parametric family of multivariate distributions with given margins. J Multivar Anal 46:262–282
Joe H (1997) Multivariate models and dependence concepts. Chapman & Hall, London
Joe H, Hu T (1996) Multivariate distributions from mixtures of max-infinitely divisible distributions. J Multivar Anal 57:240–265
Joe H, Li H, Nikoloulopoulos AK (2010) Tail dependence functions and vine copulas. J Multivar Anal 101:252–270
Joe H, Smith RL, Weissman I (1992) Bivariate threshold methods for extremes. J R Stat Soc, B 54:171–183
Jouini E, Meddeb M, Touzi N (2004) Vector-valued coherent risk measures. Finance Stoch 8:531–552
Klüppelberg C, Kuhn G, Peng L (2008) Semi-parametric models for the multivariate tail dependence function – the asymptotically dependent. Scand J Statist 35(4):701–718
Kortschak D, Albrecher H (2009) Asymptotic results for the sum of dependent non-identically distributed random variables. Methodol Comput Appl Probab 11:279–306
Kousky C, Cooke RM (2009) Climate change and risk management: challenges for insurance, adaptation and loss estimation. Discussion paper RFF DP 09-03-Rev, Resources For the Future. http://www.rff.org/RFF/Documents/
Landsman Z, Valdez E (2003) Tail conditional expectations for elliptical distributions. N Am Actuar J 7:55–71
Li H (2009) Orthant tail dependence of multivariate extreme value distributions. J Multivar Anal 100:243–256
Li H, Sun Y, (2009) Tail dependence for heavy-tailed scale mixtures of multivariate distributions. J Appl Probab 46(4):925–937
Mardia KV (1962) Multivariate Pareto distributions. Ann Math Stat 33:1008–1015
McNeil AJ, Frey R, Embrechts P (2005) Quantitative risk management: concepts, techniques, and tools. Princeton University Press, Princeton, New Jersey
Nikoloulopoulos AK, Joe H, Li H (2009) Extreme value properties of multivariate t copulas. Extremes 12:129–148
Resnick S (1987) Extreme values, regular variation, and point processes. Springer, New York
Resnick S (2007) Heavy-tail phenomena: probabilistic and statistical modeling. Springer, New York
Sklar A (1959) Fonctions de répartition à n dimensions et leurs marges. Publ Inst Stat Univ Paris 8:229–231
Takahasi K (1965) Note on the multivariate Burr’s distribution. Ann Inst Stat Math 17:257–260
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Harry Joe is supported by NSERC Discovery Grant.
Haijun Li is supported in part by NSF grant CMMI 0825960.
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Joe, H., Li, H. Tail Risk of Multivariate Regular Variation. Methodol Comput Appl Probab 13, 671–693 (2011). https://doi.org/10.1007/s11009-010-9183-x
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DOI: https://doi.org/10.1007/s11009-010-9183-x