Modeling longevity risks using a principal component approach: A comparison with existing stochastic mortality models

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题名:	Modeling longevity risks using a principal component approach: A comparison with existing stochastic mortality models
作者:	Yang,SS;Yue,JC;Huang,HC
贡献者:	財務金融學系
日期:	2010
上传时间:	2012-03-27 19:03:02 (UTC+8)
出版者:	國立中央大學
摘要:	This research proposes a mortality model with an age shift to project future mortality using principal component analysis (PCA). Comparisons of the proposed PCA model with the well-known models-the Lee-Carter model, the age-period-cohort model (Renshaw and Haberman, 2006), and the Cairns, Blake, and Dowd model-employ empirical Studies of mortality data from six countries, two each from Asia, Europe, and North America. The mortality data come from the human mortality database and span the period 1970-2005. The proposed PCA model produces smaller prediction errors for almost all illustrated countries in its mean absolute percentage error. To demonstrate longevity risk in annuity pricing, we use the proposed PCA model to project future mortality rates and analyze the underestimated ratio of annuity price for whole life annuity and deferred whole life annuity product respectively. The effect of model risk on annuity pricing is also investigated by comparing the results from the proposed PCA model with those from the LC model. The findings can benefit actuaries in their efforts to deal with longevity risk in pricing and valuation. (C) 2009 Elsevier B.V. All rights reserved.
關聯:	INSURANCE MATHEMATICS & ECONOMICS
显示于类别:	[財務金融學系] 期刊論文

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