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2013 | 1 | 37-53

Tytuł artykułu

Bounds on Capital Requirements For Bivariate Risk with Given Marginals and Partial Information on the Dependence

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Nelsen et al. [20] find bounds for bivariate distribution functions when there are constraints on the values of its quartiles. Tankov [25] generalizes this work by giving explicit expressions for the best upper and lower bounds for a bivariate copula when its values on a compact subset of [0; 1]2 are known. He shows that they are quasi-copulas and not necessarily copulas. Tankov [25] and Bernard et al. [3] both give sufficient conditions for these bounds to be copulas. In this note we give weaker sufficient conditions to ensure that both bounds are simultaneously copulas. Furthermore, we develop a novel application to quantitative risk management by computing bounds on a bivariate risk measure. This can be useful in optimal portfolio selection, in reinsurance, in pricing bivariate derivatives or in determining capital requirements when only partial information on dependence is available.








Opis fizyczny




  • Department of Statistics and Actuarial Science
    at the University of Waterloo
  • University of California
  • University of Waterloo
  • University of British Columbia


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  • [3] Bernard, C., Jiang, X., Vanduffel S. (2012). Note on“ Improved Fréchet bounds and model-free pricing of multi-asset options” by Tankov (2011)”, J. of Appl. Probab., 49(3), 866-875.
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  • [20] Nelsen, R., Quesada-Molina, J., Rodriguez Lallena, J. and Ubeda-Flores, M. (2004). “Best Possible Bounds on Sets of Bivariate Distribution Functions”, J. of Multivariate Anal., 90, 348-358.
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