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问题: 翻译五

(5)The Canadian Dollar is currently worth 0.610 USD and this exchange rate has a volatility of 12%. The Canadian risk-free rate is 7% and the US risk free is 5%. Please value a three-month American call option with a strike price of 0.58 using a three-step tree.
谢谢!

解答:

( 5 )加元兑美元,是目前市值0.610美元,这是汇率波动性为12 % 。加拿大无风险率是百分之七和美国风险免费为5 % 。请值了为期3个月的美国看涨期权与履约价格为0.58用了分三步走的一棵树。