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皓月 · 2022年12月10日

看了这题的解析和其他同学们的提问,还是没懂

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NO.PZ201512300100001207

问题如下:

7. Under Scenario 1, the intrinsic value per share of the equity of Amersheen is closest to:

选项:

A.

R13.29.

B.

R15.57.

C.

R16.31.

解释:

As the multistage residual income model results in an intrinsic value of R16.31.

This variation of the multistage residual income model, in which residual income fades over time, is:

where  is the persistence factor.

The first step is to calculate residual income per share for years 2012 2015:

ROE = earnings / book value

Growth rate = ROE × retention rate

Retention rate = 1  (dividends/earnings)

Book valuet= book valuet 1 + earningst 1  dividendst 1

Residual income per share = EPS  equity charge per share

Equity charge per share = book value per sharet× cost of equity

Using the residual income per share for 2015 of R1.608, the second step is to calculate the present value of the terminal value:

PV of Terminal Value =

R1.6081+0.10-0.70(1.10)3=R3.0203

Then, intrinsic value per share is:

V0=R7.60+R2.52(1.10)+R2.31(1.10)2+R1.98(1.10)3+R3.0203=R16.31

下图是我的计算过程


但是是16.244,这个是不是属于计算过程中小数点省略的问题?

第二个问题是为什么不是用 Rt = Rt-1 * w,还是没理解?

考试遇到这个问题到底是用w还是不用w ?


1 个答案

王园圆_品职助教 · 2022年12月10日

嗨,从没放弃的小努力你好:


同学你好,先讲原理,你问的“第二个问题是为什么不是用 Rt = Rt-1 * w,还是没理解?考试遇到这个问题到底是用w还是不用w ?”助教这里猜想你是问计算PVRI的时候,分子要不要乘以w

图一是原版书使用的公式,而图二是李老师上课的时候推导的公式,同学可以注意一下,李老师推导的公式右边用红色手写字体写的公式就是原版书这个公式的后半部分除去(1/(1+r)^(T-1)这个折现到0时刻的公式。

同学可能不记得了,上课的时候,李老师给出的这个公式其实是根据原版书公式推导来的,假设w=1+g,在原版书这个公式的基础上向后推导一年得出的

也就是说,在使用这两个公式时,李老师的公式比原版书公式向后多推导了一年

现在你看到的题目的解析,都是沿用的原版书的公式而不是李老师的公式。如果你要使用李老师的公式,也是能够计算出一样的结果的,只是需要计算出RI2016,然后再按照李老师公式计算PVRI,最后折现的时候记得把RI2012到RI2015,以及PVRI都折现到0时刻即可算出一样的答案哦(也就是我下面标绿色的解法)~


再说计算

你表格中最后2015年以后的值“2.871429”是怎么计算得到的?助教这里没有看懂呢,你的问题很可能不是小数点保留的问题

如果按照李老师上课的公式,那就是PVRI2015= RI 2015*w/(1+r-w) = 1.608*0.7/0.4 = 2.814

最后计算的V=7.5+RI2012到RI2015的折现+PVRI2015折现4年 = 16.31

如果按照原版书公式,就是PVRI2014 = RI2015/(1+r-w) =1.608/0.4 = 4.02

最后计算的V=7.5+RI2012到RI2014的折现+PVRI2014折现3年 = 16.31

两种方法最后的结果是完全一样的

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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

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