Valuing equity-linked death benefits in jump diffusion models

Details

Serval ID
serval:BIB_0872A6FBF3F0
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Valuing equity-linked death benefits in jump diffusion models
Journal
Insurance: Mathematics and Economics
Author(s)
Gerber H.U., Shiu E.S.W., Yang H.
ISSN
0167-6687
Publication state
Published
Issued date
11/2013
Peer-reviewed
Oui
Volume
53
Number
3
Pages
615-623
Language
english
Abstract
The paper is motivated by the valuation problem of guaranteed minimum death benefits in various equity-linked products. At the time of death, a benefit payment is due. It may depend not only on the price of a stock or stock fund at that time, but also on prior prices. The problem is to calculate the expected discounted value of the benefit payment. Because the distribution of the time of death can be approximated by a combination of exponential distributions, it suffices to solve the problem for an exponentially distributed time of death. The stock price process is assumed to be the exponential of a Brownian motion plus an independent compound Poisson process whose upward and downward jumps are modeled by combinations (or mixtures) of exponential distributions. Results for exponential stopping of a Lévy process are used to derive a series of closed-form formulas for call, put, lookback, and barrier options, dynamic fund protection, and dynamic withdrawal benefit with guarantee. We also discuss how barrier options can be used to model lapses and surrenders.
Keywords
equity-linked death benefits, variable annuities, jump diffusion, exponential stopping, barrier options
Create date
19/11/2013 14:41
Last modification date
20/08/2019 13:30
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