Due to the rising life expectancy in the last decades, life insurers and annuity providers
are exposed to the associated risk of longevity. This risk underlies the uncertainty in
future changes of mortality rates. Among others, the regulation of the Solvency II
regime aims at modelling and assessing this longevity risk. Subsequently, an accuracy
estimation and forecast of mortality are of high interest for an actuary. Within this
context, we introduce and analyse eight stochastic mortality models of the Generalized
Age-Period-Cohort framework. The goal of this analysis is to find the best fitting model to
historical mortality data and reliable forecasts using the sample data of Austrian females.
We identify and quantify the longevity risk by mortality rates under the Solvency Capital
Requirement of Solvency II for the standard formula. The capital requirement of Solvency
II under the consideration of risk types is generally defined as the 99.5% Value-at-Risk
and approximated via a simplified method by shocked mortality rates. The comparative
analysis leads to the simplified Plat model as an appropriate choice. For the identification
and assessment of longevity risk, we adopt the results of our model comparison. Following,
we use the mortality forecast of the Plat model for determining the Solvency Capital
Requirement quantitatively for annuity businesses.
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Due to the rising life expectancy in the last decades, life insurers and annuity providers
are exposed to the associated risk of longevity. This risk underlies the uncertainty in
future changes of mortality rates. Among others, the regulation of the Solvency II
regime aims at modelling and assessing this longevity risk. Subsequently, an accuracy
estimation and forecast of mortality are of high interest for an actuary. Within this
context, we introduce and analyse eight stochastic mortality...
»