PRICING EQUITY LINKED ANNUITIES UNDER REGIME-SWITCHING GENERALIZED GAMMA PROCESS

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Armin Pourkhanali ORCID logo, Farzad Alavi Fard

https://doi.org/10.22495/cocv12i3c2p5

Abstract

We propose a model for valuing equity linked annuity (ELA) products under a generalized gamma model with a Markov-switching compensator. We suppose that the market interest rate and all the parameters of the underlying reference portfolio switch over time according to the state of an economy, which is modelled by a continuous-time Markov chain. The model considered here can provide market practitioners with flexibility in modelling the dynamics of the reference portfolio. We price the ELA by pricing its embedded options, for which we employ the regime-switching version of Esscher transform to determine the pricing kernel. A system of coupled partial-differential-integral equations satisfied by the embedded option prices is derived. Simulation results of the model have been presented and discussed.

Keywords: Equity, Pricing, Gamma Model, ELA

How to cite this paper: Pourkhanali, A., & Alavi Fard, F. (2015). Pricing equity linked annuities under regime-switching generalized gamma process. Corporate Ownership & Control, 12(3-2), 250-260. https://doi.org/10.22495/cocv12i3c2p5