The pricing problem of the American Put option and volatility estimate are currently studied as two of the important items in the option pricing theory.

美式看跌期权定价和波动率估计是期权定价理论中的两个重要问题。

youdao

This paper analyses and computes the optimal exercise price of the American put option, by using the "FFT-RK" method. At last, numerical examples show that this method is efficient and accurate.

利用快速傅里叶变换法加龙格-库塔法对期权的最佳执行价格进行了分析和计算，最后通过数值算例说明了这一方法的有效性和准确性。

youdao

The path-dependent characteristic of American option results in it's pricing complexity and causes the pricing differences from American call option and put option.

美式期权的路径依赖特征导致了其定价的复杂性，并使得美式看涨、看跌期权之间的定价原理差异较大。

youdao

But Dell'Orto warned that the other option Congress is considering, a modified version of the Uniform Code of Military Justice, could put American troops in danger.

NPR: Congress Finds Solution for Guantanamo Trials Elusive