Evaluation of life annuity plans based on utility maximization:Focused on comparison with money's worth ratio

Evaluation of life annuity plans based on utility maximization:Focused on comparison with money's worth ratio

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Article ID: iaor20106456
Volume: 27
Issue: 1
Start Page Number: 141
End Page Number: 150
Publication Date: Jan 2010
Journal: Korean Management Science Review
Authors: ,
Keywords: programming: dynamic
Abstract:

This study evaluates life annuity plans based on two different types of measures:financial benefit and utility on consumption. The financial benefit is measured by Money's Worth (MW) ratio and return on annuity. For the measure of utility, an optimization problem is formulated with the objective of maximizing utility on consumption. To solve the optimization model, we use Dynamic Programming (DP) technique. The both types of measures are applied to cases of Korean pre-retirees at age 40 with different accumulation years of annuity (i.e. level of annuity asset at the age of retirement) and different timings of annuitization. Our results generally indicate that the utility based optimization model is superior to the financial measures in terms of providing a better evaluation of an annuity plan due to its capability to consider an individual's financial situation during his/her retirement period. Also, they suggest that the level of annuity asset is an important factor when an individual determines the optimal annuitization timing.

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