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iioos · 2019年04月19日

问一道题:NO.PZ201712110200000203 第3小题

* 问题详情,请 查看题干

问题如下图:

    

选项:

A.

B.

C.

解释:


这道题算出来是不是有问题?

难道不是102.5/(1+2.7183%)102.5/(1+1.6487%)取平均 然后再加上coupon/(1+2.8853%)/2么???????

1 个答案

吴昊_品职助教 · 2019年04月19日

Bond C是一个两年期的债券,根本用不到2.7183%和1.6487%这两个利率。建议你画一下时间图。现在要计算t=1时的upper node,只需要把t=2的现金流,即本利和102.5往一时刻折现即可,用到的利率是2.8853%。答案之所以表达成0.5*(102.5/1.028853+102.5/1.028853)这种形式,只是要把现金流二叉树和利率二叉树进行匹配而已。所以答案没有问题。

Leviathan · 2021年05月28日

但是老师上课的时候先在2时间点折了一次再加上去coupon往前折

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NO.PZ201712110200000203 问题如下 Baseon Exhibits 3 an4, the value of BonC the upper no Time 1 is closest to: A.97.1957 B.99.6255 C.102.1255 B is correct. The bonvalue the upper no Time 1 is closest to 99.6255. The cash flow Time 2 is 102.5, the remption of pvalue (100) plus the fincoupon payment (2.5). Using backwarinction, we calculate the present value of the bonthe upper no of Time 1 102.5/1.028853 = 99.6255. 为啥value不用加coupon, 也可以是time 1付息前的价值啊

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