标题: is this question right ??? [打印本页] 作者: hw0799 时间: 2011-7-13 13:45 标题: is this question right ???
Which of the following cash flow streams is most likely to have multiple IRRs?
Purchase Price Cash Flow 1 Cash Flow 2
A) $1.0 million $1.0 million gain $0.1 million expense
B) $1.8 million $10 million gain $9 million expense
C) $1.7 million $8.0 million gain $5 million gain
Your answer: C was incorrect. The correct answer was B) $1.8 million $10 million gain $9 million expense
When there is a reversal in the sign of the cash flows, it is likely that there will be multiple IRR solutions. In fact, for the cash flow stream {-1.8; 10; -9} the IRRs are 13 and 343%.作者: iteracom 时间: 2011-7-13 13:45
B is right.
not see any problem on the explanation. high nagitive cash flow will cause mutiple IRR since the "fuction" will have 2 values.
BTW, the "function" is the Quadratic Equation used in discounting NPV and IRR.
Edited 1 time(s). Last edit at Wednesday, May 26, 2010 at 04:37AM by coshair.作者: chaojimali 时间: 2011-7-13 13:45
ya not A then u have 2 -ve signs in that too... when we have multiple times cash outlays we will have multiple IRR.. that's my understanding is.... OR it is dependend on the size of the outlay as u said?作者: Rasec 时间: 2011-7-13 13:45
it is not solely the size of the outlay
you may calc if you wish:
for A): -
NPV = -1.0 + 1.0/(1+x) + (-0.1)/(1+x)^2
Let NPV = 0 we get IRR.
so we need to solve this Quadratic Equation.
for y=ax^2+bx+c
we have x1=(1/2a)*(-b +(b^2-4ac)^0.5) AND x2=(1/2a)*(-b -(b^2-4ac)^0.5)
just solve it. if you get two different but meaningful X , that is multiple IRR
Edited 1 time(s). Last edit at Wednesday, May 26, 2010 at 04:53AM by coshair.
