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lin06 · 2019年03月09日

问一道题:NO.PZ2016082402000001

问题如下图:

    

选项:

A.

B.

C.

D.

解释:


很多题目中都不说明是连续的还是离散的,怎么判断是用连续型公式还是离散型公式?

1 个答案
已采纳答案

orange品职答疑助手 · 2019年03月09日

同学你好。FRM里本身出题不是完全严谨的,它没有一个明确的说法碰到什么题型就一定要用什么样的计算方式。而且一般情况下,离散和连续的利率,相差并不是很大,不会影响到选项的确定。不过在算EAR的时候,还是离散用的更多些。

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NO.PZ2016082402000001 问题如下 investor buys a Treasury bill maturing in one month for $987. On the maturity te the investor collects $1,000. Calculate effective annurate (EAR). A.17.0% B.15.8% C.13.0% 11.6% ANSWER: AThe Eis finebyFVPV=(1+EAR)T\frac{FV}{PV}={(1+EAR)}^TPVFV​=(1+EAR)T . So (FVPV)1T−1{(\frac{FV}{PV})}^\frac1T-1(PVFV​)T1​−1 E= . Here, T = 1/12. So, E=   (1,000987)12−1=17.0%\;{(\frac{1,000}{987})}^{12}-1=17.0\%(9871,000​)12−1=17.0% EAR和BEY在讲义的哪个地方,找不到了

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