Your friend promises you a perpetuity of $1 every year, which starts in year 1. However, your friend is an absent-minded guy, paying you $2 at year 9 but no payment at year 10. Except for these two years, in other years, the payment is always $1. Which of the following statements is true?
Select one:
a. your friend is better off for his being absent-minded
b. you are better off for his being absent-minded
c. there is no difference for his being absent-minded
d. no enough information to make decision
e. none of the above
An example can be taken in this regard, for a perpetual cash flow, the Present value of perpetuity is given by CF/k, where CF is the constant cash flow and k is the cost of capital. Assuming cost of capital to be 10%, In case 1 if there is no absent mindedness for the friend, the value of perpetuity = 1/10% = $ 10
For an absent minded friend,
Cash flow from 1 to 8 is $ 1 , $ 2 in year 9 and then $ 1 from year 11, so
PV of cash flows from year 1 to year 9 = 1/10% + 2/(1+10%)^9 = $ 6.18
PV of cash flows from year 11 = (1/0.10)/(1+10%)^11 = 10/(1.1)^11 = $ 3.5
PV of cash flows =$ 6.18 + $ 3.5 = $ 9.69
Answer is a) your friend is better off for his being absent-minded
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