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Lie-algebraic approach for pricing zero-coupon bonds in single-factor interest rate models

机译:单因子利率模型中零息票定价的李代数方法

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摘要

The Lie-algebraic approach has been applied to solve the bond pricing problem in single-factor interest rate models. Four of the popular single-factor models, namely, the Vasicek model, Cox-Ingersoll-Ross model, double square-root model, and Ahn-Gao model, are investigated. By exploiting the dynamical symmetry of their bond pricing equations, analytical closed-form pricing formulae can be derived in a straightfoward manner. Time-varying model parameters could also be incorporated into the derivation of the bond price formulae, and this has the added advantage of allowing yield curves to be fitted. Furthermore, the Lie-algebraic approach can be easily extended to formulate new analytically tractable single-factor interest rate models.
机译:李-代数方法已被用于解决单因素利率模型中的债券定价问题。研究了四种流行的单因素模型,即Vasicek模型,Cox-Ingersoll-Ross模型,双平方根模型和Ahn-Gao模型。通过利用它们的债券定价方程的动态对称性,可以以直截了当的方式导出分析性封闭式定价公式。随时间变化的模型参数也可以纳入债券价格公式的推导中,这具有允许拟合收益曲线的附加优势。此外,李-代数方法可以很容易地扩展到制定新的分析上易于处理的单因素利率模型。

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