Chapter 6: Discounted Cash Flow Valuation Flashcards
Based on this example, there are two ways to calculate future values for multiple cash flows:
(1) compound the accumulated balance forward one year at a time or
(2) calculate the future value of each cash flow first and then add them up.
Both give the same answer, so you can do it either way
Present Value with Multiple Cash Flows Example
Suppose you need $1,000 in one year and $2,000 more in two years. If you can earn 9% on your money, how much do you have to put up today to exactly cover these amounts in the future? In other words, what is the present value of the two cash flows at 9%?
Answer: Total PV = 1,683.36 +917.43 = 2,600.79
A Note on Cash Flow Timing
In working present and future value problems, it is implicitly assumed that the cash flows occur at the end of each period
Unless you are very explicitly told otherwise, you should always assume that this is what is meant.
A very common type of loan repayment plan calls for the borrower to repay the loan by making a series of equal payments over some length of time
Almost all consumer loans (such as car loans and student loans) and home mortgages feature equal payments, usually made each month.
Annuity
A level stream of cash flows for a fixed period of time.
Suppose we were examining an asset that promised to pay $500 at the end of each of the next three years. The cash flows from this asset are in the form of a three-year, $500 annuity. If we wanted to earn 10% on our money, how much would we offer for this annuity?
From the previous section, we know that we can discount each of these $500 payments back to the present at 10% to determine the total present value:
Year 1 = 500 / 1.1
Year 2 = 500 / 1.1^2
Year 3 = 500 / 1.1^3
Add up all the values and it should equal:
= $1,243.43
Annuity Present Value Equation
For when the value each period (month, year, etc) is always equal such as your car insurance, mortgage, loan repayments, etc
Annuity Present Value = C x {[1 - 1 / (1 + r)^t] / r}
Present Value Factor (PVIFA)
(1 - Present Value Factor / r)
or
(1 - {1 - [ 1 / ( 1 + r )^t ] } / r
Present Value Factor equation
1 / ( 1 + r)^t
In our example from the beginning of this section, the interest rate is 10% and there are three years involved. The usual present value factor is thus:
PVF = 1 / 1.1^3 PVF = 0.75131
The only way to find a value for r is to:
1) Use a calculator
2) Use a table
3) Trial and Error
Annuity FV Factor Equation
( ( 1+ r ) ^ t - 1) / r
Ordinary annuity
Remember that with an ordinary annuity, the cash flows occur at the end of each period
Annuity Due
An annuity for which the cash flows occur at the beginning of the period.
Such as apartment rent is due on the 1st of each month
Annuity Due Value =
Equation
Ordinary Annuity Value x (1 + r)
This works for both present and future values, so calculating the value of an annuity due involves two steps:
(1) calculate the present or future value as though it were an ordinary annuity, and (2) multiply your answer by (1 + r)
Perpetuity
An annuity in which the cash flows continue forever
Consol
A type of perpetuity.
PV for a perpetuity =
Equation
C / r
PV for a perpetuity =
Example
For example, an investment offers a perpetual cash flow of $500 every year. The return you require on such an investment is 8%. What is the value of this investment? The value of this perpetuity is:
Perpetuity PV = C / r
$500 / 0.08 = $6,250