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    题名: Understanding Patterns of Mortality Homogeneity and Heterogeneity across Countries and their Role in Modelling Mortality Dynamics and Hedging Longevity Risk
    作者: 楊曉文
    Yang, Sharon S.
    Yeh, Yu-Yun
    Yue, Jack C.
    Huang, Hong-Chih
    贡献者: 金融系
    日期: 2019-12
    上传时间: 2020-03-02 15:25:38 (UTC+8)
    摘要: Understanding patterns of mortality homogeneity and heterogeneity across countries can assist in modeling mortality dynamics and in hedging longevity risk. This study proposes a methodology, based on the graduation method, to detect differences in mortality rates across different populations. Using an index hˆ2ĥ2 based on the partial standard mortality ratio, we measure mortality homogeneity and heterogeneity, then conduct an empirical study across countries with emerging and developed markets. The results of model fitting show that it is inappropriate to use a coherent mortality model for the mortality-heterogeneous populations. In an application, we demonstrate that a reinsurer can utilize information concerning mortality homogeneity/heterogeneity for pooling risk in its books of life insurance and annuity businesses and increase overall hedge effectiveness. The coherent mortality model can help reduce the volatility of the reinsurer’s profit and help the reinsurer diversify its longevity risk.
    關聯: North American Actuarial Journal
    数据类型: article
    DOI 連結: https://doi.org/10.1080/10920277.2019.1662315
    DOI: 10.1080/10920277.2019.1662315
    显示于类别:[金融學系] 期刊論文

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