American option or style

• 美式期权

American option or style的用法和样例：

例句

1. The numerical solution for pricing American options under stochastic volatility is considered.
   摘要考虑随机波动率下美式期权定价问题的数值模拟求解。
2. This paper develops a trinomial option pricing model that incorporates the first four moments of the stock return distribution.
   提出了一个将股票收益分布的头四个动差结合起来的三项式期权定价模型。