American option or style的用法和樣例：
例句
- The numerical solution for pricing American options under stochastic volatility is considered.
摘要考慮隨機波動(dòng)率下美式期權定價(jià)問(wèn)題的數值模擬求解。 - This paper develops a trinomial option pricing model that incorporates the first four moments of the stock return distribution.
提出了一個(gè)將股票收益分布的頭四個(gè)動(dòng)差結合起來(lái)的三項式期權定價(jià)模型。
