Advances in Decision Sciences
Volume 2009 (2009), Article ID 215163, 11 pages
doi:10.1155/2009/215163

Valuation for an American continuous-installment put option on bond under Vasicek interest rate model

Guoan Huang1 , Guohe Deng2 and Lihong Huang3

1Department of Computer Science, Guilin College of Aerospace Technology, Guilin 541004, China
2School of Mathematics Science, Guangxi Normal University, Guilin 541004, China
3College of Mathematics and Econometrics, Hunan University, Changsha 410082, China

Abstract

The valuation for an American continuous-installment put option on zero-coupon bond is considered by Kim's equations under a single factor model of the short-term interest rate, which follows the famous Vasicek model. In term of the price of this option, integral representations of both the optimal stopping and exercise boundaries are derived. A numerical method is used to approximate the optimal stopping and exercise boundaries by quadrature formulas. Numerical results and discussions are provided.