Benchmark models for the term structure and dynamic of the interest rate, having the instantaneous rate as the only state variable, were introduced by Vasicek (V) and Cox-Ingersoll-Ross (CIR). Then the measure of a zero-coupon bond price change with respect to any change of the short-term...

Interest rate risk, i.e. the risk of changes in the interest rate term structure, is of high relevance in insurers' risk management. Due to large capital investments in interest rate sensitive assets such as bonds, interest rate risk plays a considerable role for deriving the solvency capital...