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arXiv · 1408.5673

Approximating the zero-coupon bond price in a general one-factor model with constant coefficients

Beata Stehlikova
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Abstract

We consider a general one-factor short rate model, in which the instantaneous interest rate is driven by a univariate diffusion with time independent drift and volatility. We construct recursive formula for the coefficients of the Taylor expansion of the bond price and its logarithm around $\tau=0$, where $\tau$ is time to maturity. We provide numerical examples of convergence of the partial sums of the series and compare them with the known exact values in the case of Cox-Ingersoll-Ross and Dothan model.

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Beata Stehlikova. 2014-08-25. Approximating the zero-coupon bond price in a general one-factor model with constant coefficients. https://arxiv.org/abs/1408.5673

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