Approximate Formulas for Zero-coupon Bonds
Using perturbation methods, approximate formulas are obtained for zero-coupon bonds under the generalized Black-Karasinski model. The formulas perform well regarding accuracy and calibration to available data. For a special case, which corresponds to the Hull-White model, the approximation actually yields an exact solution. Numerical simulations are presented that partially validate the asymptotic approximation. A calibration strategy is investigated in order to fit the model to given data on discount rates.
Volume (Year): 14 (2007)
Issue (Month): 3 ()
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