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8/8/2019 01 Chap 1 Time Value of Money
1/44
Chapter 1PrinciplesPrinciplesofof
CorporateCorporate
FinanceFinance
Time Value of Money
Slides by
Matthew Will
Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reservedMcGraw Hill/Irwin
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Topics Covered
Introductionto Present Value and FutureValue
Valuing Long-Lived Assets
Looking for Shortcuts Perpetuities andAnnuities
More Shortcuts Growing Perpetuities
and AnnuitiesCompound Interest & Present Values
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Present and Future Value
Present Value
Value today of a
future cashflow.
Future Value
Amountto which an
investment will grow
after earning interest
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Simple and Compound Interest
Compound interest: When money isinvested at compound interest, each interest
payment is reinvested to earn more interest
in subsequent periods.Simple interest: The opportunity to earn
interest on interest is not provided.
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Simple and Compound Interest
The value of a $100 investment earning 10% annually.
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Compound Interest
Compound interest versus simple interest. The longerthe funds are invested,thegreaterthe advantage with compound interest. The bottom line shows that
$38.55 must be invested now to obtain $100 after 10 periods. Conversely,the
present value of $100 to be received after 10 years is $38.55.
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Future Values
Future Value of $100 = FV
FV r t! v $100 ( )1
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Future Values
FV rt
! v $100 ( )1
Example -FV
What is the future value of $100 if interestis
compounded annually ata rate of 6% for five years?
82.133$)06.1(100$ 5 !v!FV
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Future Values
FV rt
! v $100 ( )1
Example -FV
What is the future value of $400,000 if interestis
compounded annually ata rate of 5% forone year?
000,4 0$)01(000,400$ 1 !v!FV
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Discount Factors and Rates
Discount Rate
Interest rate used
to compute
present values offuture cash flows. Discount Factor
Present value of
a $1 futurepayment.
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Present Value
1actordiscountPV
PVValuePresent
Cv
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Present Value
Discount Factor = DF = PV of $1
Discount Factors can be used to compute the present value of
any cash flow.
DF r t! 11( )
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Present Values
Discount Factors can be used to compute
the present value of any cash flow.
DFr
t!
1
1( )
1
11
1 r
CCDFPV
!v!
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Present Values
ExampleYou justboughta new computer for $3,000. The payment
terms are 2 years same as cash. If you can earn 8% on
yourmoney, how much money should you set aside today
in orde
rto make
the paymen
tw
hen due in
two yea
rs?
572,2$2)08.1(3000
!!PV
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Present Values
ExampleYou have the opportunity to purchase the baseballhit by
Barry Bonds to break Hank Arrons home run record
(home run # 756). You estimate this baseball will be worth
$2,000,000 wh
en youre
tire a
tth
e end oftwen
ty yea
rs. Ifyou expecta 12% return on your investment, how much
will you pay forthe baseball ?
33,207$20)12.1(000,000,2
!!PV
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Present Values
Replacing 1 with t allows the formula
to be used for cash flows that exist at any
point intime
t
t
t
r
C
CDFPV )1( !v!
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Present Values
Example
You willreceive $200 in two years. Ifthe annualrate of
interest is 7.7%, what is the present value ofthe $200?
42.172$2)077.1(200 !!PV
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Present Values
PVs can be added togetherto evaluate
multiple cash flows.
PVC
r
C
r!
1
1
2
21 1( ) ( )....
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Present Values
PVs can be added togetherto evaluate
multiple cash flows.
15.26821 )07.1(200
)07.1(
100!!
PV
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Present Values
Present Value
Year 0
100/1.07
200/1.0772
Total
= $93. 6
= $172. 2
= $265.88
$100
$200
Year
0 1 2
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Present Values
Giventwo dollars, one received a year from nowand the othertwo years from now,the value of
each is commonly called the Discount Factor.
Assume r1 = 20% and r2 = 7%.
7.
.
2
1
07.1
00.12
20.1
00.11
!!
!!
DF
DF
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Present Values
Example
Assume thatthe cash flows
from the construction and sale
of an office building is as
follows. Given a 5% required
rate ofreturn, create a present
value worksheet
000,320000,100000,170
2ear1ear0ear
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Present Values
Example - continued
Assume thatthe cash flows from the construction and sale of an office
building is as follows. Given a 5% requiredrate ofreturn, create a
presentvalue worksheet.
011,25$
2 9,290000,320907.2
238,95000,100952.1
000,170000,1700.10Value
Present
Flow
Cash
Factor
DiscountPeriod
205.1
1
05.11
!
!!
Total
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Present Values
Present Value
Year 0
-170,000
-100,000/1.05
320,000/1.052
Total
-$170,000
= -$170,000
= $95,238
= $290,2 9
= $25,011
-$100,000
+$320,000
Year
0 1 2
Ex
ample - continuedAssume thatthe cash flows from the construction and sale of an office
building is as follows. Given a 5% requiredrate ofreturn, create a
presentvalue worksheet.
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Short Cuts
Sometimes there are shortcuts that make itvery easy to calculate the present value of
an assetthat pays off in different periods.
These tools allow us to cutthrough thecalculations quickly.
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Short Cuts
Perpetuity - Financial concept in which a constantcash flow is theoretically received forever.
r
CPV1
0
ratediscount
flowcashFlowCashofPV
!
!
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Present Values
Example
What is the presentvalue of $1 billion every year, for all
eternity, if you estimate the perpetual discountrate to be
10%??
billion10$10.0
bil$1!!PV
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Short Cuts
Annuity - An assetthat pays a fixed sum each year fora specified number of years.
r
CPerpetuity (firstpayment in year 1)
Perpetuity (first payment
in yeart + 1)
Annuity from year
1 to yeart
Asset Year of Payment
1 2..t t + 1
Present Value
trr
C
)1(
1
t
rr
C
r
C
)1(
1
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Ex
ampleTiburon Autos offers you easy payments of $5,000 per year, atthe end
of each year for5 years. If interestrates are 7%, per year, whatis the
costofthe car?
Present Values
5,000
Year0 1 2 3 5
5,000 5,000 5,000 5,000
20,501NPVTotal
565,307.1/000,5
81,307.1/000,5
081,407.1/000,5
367,407.1/000,5
673,407.1/000,5
5
4
3
2
!
!
!
!
!
!
Present Value at
year 0
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Short Cuts
Annuity - An assetthat pays a fixed sum eachyear for a specified number of years.
-
v!
trrr
C1
11annuityofPV
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Annuity Short Cut
Example
You agree to lease a car for 4 years at $300 permonth.
You are notrequiredto pay any money up frontor atthe
end of youragreement. If youropportunity costof capital
is 0.5% permonth, what is the costofthe lease?
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Annuity Short Cut
Example - continued
You agree to lease a car for4 years at $300 per
month. You are notrequiredto pay any money up
frontor atthe end of youragreement. If your
opportunity cost of capital is 0.5% per month,whatis the cost ofthe lease?
10.774,12$
005.1005.
1
005.
1300CostLease
48
!
-
v!
Cost
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Annuity Short Cut
Example
The state lottery advertises a jackpotprize of $295.7
million, paid in 25 installments over25 years of $11.828
million peryear, atthe end of each year. If interestrates
are 5.9% what is the true value ofthe lottery prize?
000,600,152$ 059.1059.
1
059.
1828.11ValueLottery
25
!
-
v!
Value
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FV Annuity Short Cut
Future Value of an Annuity The future value ofan assetthat pays a fixed sum each year for a
specified number of years.
-
v!
r
rC
t
11annuityofFV
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Annuity Short Cut
Example
What is the future value of $20,000 paid atthe end of each
ofthe following 5 years, assuming your investmentreturns
8% peryear?
332,117$
08.
108.1000,20FV
5
!
-
v!
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Constant Growth Perpetuity
gr
V
1
0
g = the annual growth rate ofthe
cash flow
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Constant Growth Perpetuity
gr
CPV
!1
0
NOTE: This formula can be used
to value a perpetuity at any point
in time.
gr
CPV tt
!1
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Constant Growth Perpetuity
Example
What is the presentvalue of $1 billion paid atthe end of
every year in perpetuity, assuming a rate ofreturn of 10%
and a constantgrowthrate of 4%?
billion667.16$04.10.
1
0
!
!PV
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Perpetuities
A three-year stream of cash flows thatgrows atthe rate g is
equal to the difference betweentwo growing perpetuities.
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Compound Interest
A note on compounding intervals: Aninvestment of $1 at a rate of r per annum
compounded m times a year amounts by the
end ofthe yearto [1 + (r/m)]m
, and theequivalent annually compounded rate of
interest is [1 + (r/m)]m - 1
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Compound Interest
i ii iii iv v
Periods Interest Value Annually
per per APR after compounded
year period (i x ii) one year interest rate
1 6% 6% 1.06 6.000%
2 3 6 1.032 = 1.0609 6.090
4 1.5 6 1.0154 = 1.06136 6.136
12 .5 6 1.00512 = 1.06168 6.168
52 .1154 6 1.00115452 = 1.06180 6.180
365 .0164 6 1.000164365 = 1.06183 6.183
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Compound Interest
02
4
6
8
1012
14
16
18
0 3 6 912 15 18 21 24 27 30
Number of Years
FV
of$1
10% Simple
10% Compound
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Compound Interest
Example
Suppose you are offered an automobile loan atan APR of
6% peryear. What does that mean, and what is the true
rate of interest, given monthly payments?
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Compound Interest
Example - continued
Suppose you are offered an
automobile loan at an APR of 6% per
year. What does thatmean, and what
is the true rate of interest, given
monthly payments? Assume $10,000loan amount.
%1678.6
78.616,10
)005.1(000,10PmtLoan 12
!
!
v!
APR