American option

基本解释

It was to explore the American option that Mao recalled four Army marshals from exile.
正是探索美国这一选择，毛召回了四位外放元帅。
The pricing of the American option is one of the most important questions in financial statistics.
美式期权的定价问题是当前金融统计学面临的重要研究课题之一。
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American option: The right to buy a given quantity of a good or security at or before a specific time and at a specific price (the strike price).
美式期权：有权购置某一特定数量的一个好或平安时或之前，详细时间和在某一特定价钱（履约价钱）。

If you purchase an option, you have the right to exercise it (with an American style option as most equities are) at any time in the expiration cycle.
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Institutional investment analysis adds the bond (usually American) option to the analysis.
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Most women in Brazil lack one option that American ones often have—looting their kids' medicine.
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