刘同学2018-05-20 21:11:59
A stock value is three times than last year. calculate the continuously compounded return over the period: A 18.2%. B 69.3%. C 110.0%. 这个用计算器怎么按?我假设起初是1,期末是3,3-1/1=2,2,2nd,ex次方,-1,最后等于6.389
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银矿石2018-05-21 17:31:18
同学你好,你的做法是对的,答案有误。
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An investor invested $10,000 into an account five years ago. Today, the account value is $18,682. What is the investor´s annual rate of return on a continuously compounded basis? A 12.50%. B 11.33%. C 13.31%.,,,,,还有这道题,也是这样的。13.31%求出来之后怎么处理?是让e的r次方-1=13.31%吗?还是r=13.31%,求e的r次方-1.。。。。。。。。。。。。。。。If the price of a stock goes from $15.00 to $16.20 in one year, the continuously compounded rate of return is closest to: A 8.33%. B 7.70%. C 8.00%.、。。。。。。还有这道题也是,e的r次方-1=8%,求r,还是r=8%,求e的r次方-1=???
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同学你好,从性质上区分,r是年利率,e的r次方-1是连续复利。
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对,我跟你想的一样,可是另一位老师说e的r次方-1=13.31%,反求r才行
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反求r的话不就成了求年利率了吗?这三道题都是问the continuously compounded rate of return is closest to,
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同学你好,经过询问,EAR=e的r次方-1,这是连续复利下的有效年利率,而r是我们要求的连续复利。这个地方确实容易弄混。
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那这道题应该怎么做呢?
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根据第一句话,得出EAR(即e的r次方-1)=200%,之后用计算器求出r,这个r就是要求的连续复利。
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算出来是1.098?
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是的,e的r次方=3,那么ln3=r,用计算器代入,得到1.098,即109.8%,约等于110%,选C。


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