摘要
在假定风险资产价格过程遵循几何Levy过程、风险资产无红利支付、期望收益率及收益波动率均为时间函数的情况下,利用鞅论的有关理论和方法并通过选取不同的计价单位及进行相应的概率测度变换,得到了具有规定时间的重置期权的一般定价公式,并给出这一公式在具有一个重置时间t1情况下的显示解.从而解决了此类过程下重置期权的定价问题.
Under the assumptions that the risk asset is driven by the Levy jump diffusion process and has no dividens, a reset option pricing formula with predetermined dates is obtained in the case of timedependent valatility rate and time-dependent interest rate by applying martingale method and changing of numeraire or changing of probability measure. The solution is also obtained when it has one reset time and the problem of pricing of this reset option is solved.
出处
《陕西师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2008年第3期17-20,共4页
Journal of Shaanxi Normal University:Natural Science Edition
基金
国家自然科学基金资助项目(40271037)
关键词
风险中性测度
鞅
重置期权
计价单位
随机测度
risk-neutral measure
martingale
reset option
numeraire
random measure