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Modeling multi-country mortality dependence and its application in pricing survivor index swaps—A dynamic copula approach

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  • Wang, Chou-Wen
  • Yang, Sharon S.
  • Huang, Hong-Chih

Abstract

This paper introduces mortality dependence in multi-country mortality modeling using a dynamic copula approach. Specifically, we use time-varying copula models to capture the mortality dependence structure across countries, examining both symmetric and asymmetric dependence structures. In addition, to capture the phenomenon of a heavy tail for the multi-country mortality index, we consider not only the setting of Gaussian innovations but also non-Gaussian innovations under the Lee–Carter framework model. As tests of the goodness of fit of different dynamic copula models, the pattern of mortality dependence, and the distribution of the innovations, we used empirical mortality data from Finland, France, the Netherlands, and Sweden. To understand the effect of mortality dependence on longevity derivatives, we also built a valuation framework for pricing a survivor index swap, then investigated the fair swap rates of a survivor swap numerically. We demonstrate that failing to consider the dynamic copula mortality model and non-Gaussian innovations would lead to serious underestimations of the swap rates and loss reserves.

Suggested Citation

  • Wang, Chou-Wen & Yang, Sharon S. & Huang, Hong-Chih, 2015. "Modeling multi-country mortality dependence and its application in pricing survivor index swaps—A dynamic copula approach," Insurance: Mathematics and Economics, Elsevier, vol. 63(C), pages 30-39.
  • Handle: RePEc:eee:insuma:v:63:y:2015:i:c:p:30-39
    DOI: 10.1016/j.insmatheco.2015.03.019
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    Cited by:

    1. repec:bla:jrinsu:v:84:y:2017:i:s1:p:477-493 is not listed on IDEAS
    2. Wang, Zihe & Li, Johnny Siu-Hang, 2016. "A DCC-GARCH multi-population mortality model and its applications to pricing catastrophic mortality bonds," Finance Research Letters, Elsevier, vol. 16(C), pages 103-111.
    3. repec:eee:stapro:v:129:y:2017:i:c:p:275-283 is not listed on IDEAS
    4. repec:bla:jrinsu:v:84:y:2017:i:s1:p:393-415 is not listed on IDEAS

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