Description: This article discusses the problems created by the options in unit-linked annuities in the UK, variable annuities in the US and segregated fund contracts in Canada. Methodology for valuing the guaranteed annuity option is presented.

Description: The purpose of this paper is to help practitioners and regulators more accurately quantify the potential impact of market risk on insurance products with equity-linked guarantees. To this end, this paper examines time series model selection and assessment based on residuals, with a focus on regime switching models. Also it discusses the difficulties in defining residuals for such processes and propose several possible alternatives. We determine that a stochastic approach to defining the residuals is the only way to generate residuals that are normally distributed under the model hypothesis.