Optimal Stopping with Model Uncertainty and Pricing the American Option
In order to formulate the skewness, excess kurtosis of the stock price and model uncertainty, this paper concerns a g-martingale characterization of value process of American put-option in a jump-diffusion model;Furthermore, we give a new free boundary problem tool for pricing the American put-option. And we can compute the size of model uncertainty by the market data. Our methods lead to an effective investment strategy against the stock price behaviour and model uncertainty.
American put-option optimal stopping ambigu-ity BSDE g-ezpectation
Guoqing Zhao
School of Mathematics, Shandong University, Jinan, 250100, China
国际会议
北京
英文
329-332
2009-07-24(万方平台首次上网日期,不代表论文的发表时间)