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月乔DD · 2020年03月14日

问一道题:NO.PZ201601200500000802

* 问题详情,请 查看题干

问题如下:

2. The optimal subset of the six projects that Schoeman is considering consists of Projects:

选项:

A.

1 and 5.

B.

2, 3, and 4.

C.

2, 4, 5, and 6.

解释:

A is correct.

To help the selection process, use the profitability index for each project, which shows the total present value per dollar invested.

Try to incorporate the high PI projects into the budget using trial and error. These trials include the following:

Among the sets of projects suggested, the optimal set is the one with the highest NPV, provided its total outlay does not exceed C$40 million. The set consisting of Projects 1 and 5 produces the highest NPV.

不是很明白算答案里面算pi是干什么用的呢?

1 个答案

Debrah_品职答疑助手 · 2020年03月15日

同学你好,NPV和IRR是我们最常用的投资决策指标,Profitability Index也是原版书提到的一个criteria。PI代表投资一块钱所获得的现金流现值,原版书的定义如下:

这道题目本身由于是选择题,不需要计算PI就可以得到最优组合,只需要把每个选项计算一下NPV即可。但若本身是计算题,就需要计算不同项目的PI,再在预算范围内选出PI最高的组合,再计算NPV。比如4号和5号项目的NPV都是3,但由于5号项目的PI更大,所以最优组合是1+5而不是1+4.