When investors had right to delay development for intending oilfield, the investment decision making of the oilfield development project can be similar to American call options.
当投资者对拟开发油田具有延迟开发权利时，油田开发项目的投资决策可类比于美式看涨期权。
This kind of option strategy is comprised by one put and one call options with the same strike price and the same expiry date.
该组合由两份执行价格和到期日均相同的看涨期权和看跌期权组成。
Furthermore, with European down-and-out and down-and-in call options as an example, we discussed the impact and characteristics of the scale and long-time dependence on the barrier options.
再者，我们以欧式下降敲出看涨和下降敲入看涨期权为例，讨论了标度和长期依赖性对障碍期权定价的影响程度及特征。
Call options give investors the right, but not the obligation, to buy shares of a company at a specified price on a certain date.
认购期权给了投资者在某日以一个特定价格购买一家公司股票的权利，但他没有义务非要购买。
Call options give investors the right, but not the obligation, to buy shares of a company at a specified price on a certain date.
认购期权给了投资者在某日以一个特定价格购买一家公司股票的权利，但他没有义务非要购买。
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