chapter 3 the time value of money
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Chapter 3 The Time Value of Money. 2005, Pearson Prentice Hall. The Time Value of Money. Compounding and Discounting Single Sums. Today. Future. We know that receiving $1 today is worth more than $1 in the future. This is due to opportunity costs . - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 3 The Time Value of
Money
2005, Pearson Prentice Hall
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The Time Value of Money
Compounding and Discounting Single Sums
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We know that receiving $1 today is worth more than $1 in the future. This is due to opportunity costs.
The opportunity cost of receiving $1 in the future is the interest we could have earned if we had received the $1 sooner.
Today Future
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If we can measure this opportunity cost, we can:
• Translate $1 today into its equivalent in the future (compounding).
• Translate $1 in the future into its equivalent today (discounting).
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Today Future
Today
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Future
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Compound Interest and
Future Value
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Future Value - single sums
If you deposit $100 in an account earning 6%, how much would you have in the account after 1 year?
Calculator Solution: P/Y = 1 I = 6 N = 1 PV = -100 FV = $106
00 1 1
PV = -100PV = -100 FV = FV =
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Future Value - single sums
If you deposit $100 in an account earning 6%, how much would you have in the account after 1 year?
Calculator Solution: P/Y = 1 I = 6 N = 1 PV = -100 FV = $106
00 1 1
PV = -100PV = -100 FV = FV = 106106
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Future Value - single sums
If you deposit $100 in an account earning 6%, how much would you have in the account after 1 year?
Mathematical Solution:FV = PV (FVIF i, n )
FV = 100 (FVIF .06, 1 ) (use FVIF table, or)
FV = PV (1 + i)n
FV = 100 (1.06)1 = $106
00 1 1
PV = -100PV = -100 FV = FV = 106106
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Future Value - single sums
If you deposit $100 in an account earning 6%, how much would you have in the account after 5 years?
Calculator Solution: P/Y = 1 I = 6 N = 5 PV = -100 FV = $133.82
00 5 5
PV = -100PV = -100 FV = FV = 133.133.8282
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Future Value - single sums
If you deposit $100 in an account earning 6%, how much would you have in the account after 5 years?
Mathematical Solution:FV = PV (FVIF i, n )
FV = 100 (FVIF .06, 5 ) (use FVIF table, or)FV = PV (1 + i)n
FV = 100 (1.06)5 = $133.82
00 5 5
PV = -100PV = -100 FV = FV = 133.133.8282
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Calculator Solution: P/Y = 4 I = 6 N = 20 PV = -100 FV = $134.68
00 20 20
PV = -100PV = -100 FV = FV = 134.134.6868
Future Value - single sumsIf you deposit $100 in an account earning 6% with quarterly compounding, how much would you have in the account after 5 years?
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Mathematical Solution:FV = PV (FVIF i, n )FV = 100 (FVIF .015, 20 ) (can’t use
FVIF table)
FV = PV (1 + i/m) m x n
FV = 100 (1.015)20 = $134.68
00 20 20
PV = -100PV = -100 FV = FV = 134.134.6868
Future Value - single sumsIf you deposit $100 in an account earning 6% with quarterly compounding, how much would you have in the account after 5 years?
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Calculator Solution: P/Y = 12 I = 6 N = 60 PV = -100 FV = $134.89
00 60 60
PV = -100PV = -100 FV = FV = 134.134.8989
Future Value - single sumsIf you deposit $100 in an account earning 6% with monthly compounding, how much would you have in the account after 5 years?
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Mathematical Solution:FV = PV (FVIF i, n )FV = 100 (FVIF .005, 60 ) (can’t use
FVIF table)
FV = PV (1 + i/m) m x n
FV = 100 (1.005)60 = $134.89
00 60 60
PV = -100PV = -100 FV = FV = 134.134.8989
Future Value - single sumsIf you deposit $100 in an account earning 6% with monthly compounding, how much would you have in the account after 5 years?
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00 100 100
PV = -1000PV = -1000 FV = FV = $2.98m$2.98m
Future Value - continuous compoundingWhat is the FV of $1,000 earning 8% with continuous compounding, after 100 years?
Mathematical Solution: FV = PV (e in) FV = 1000 (e .08x100) = 1000 (e 8) FV = $2,980,957.99
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Present Value
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Calculator Solution: P/Y = 1 I = 6 N = 1 FV = 100 PV = -94.34
PV = PV = -94.-94.3434 FV = 100 FV = 100
00 1 1
Present Value - single sumsIf you receive $100 one year from now, what is the PV of that $100 if your opportunity cost is 6%?
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Mathematical Solution:PV = FV (PVIF i, n )
PV = 100 (PVIF .06, 1 ) (use PVIF table, or)
PV = FV / (1 + i)n
PV = 100 / (1.06)1 = $94.34
PV = PV = -94.-94.3434 FV = 100 FV = 100
00 1 1
Present Value - single sumsIf you receive $100 one year from now, what is the PV of that $100 if your opportunity cost is 6%?
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Calculator Solution: P/Y = 1 I = 6 N = 5 FV = 100 PV = -74.73
Present Value - single sumsIf you receive $100 five years from now, what is the PV of that $100 if your opportunity cost is 6%?
00 5 5
PV = PV = -74.-74.7373 FV = 100 FV = 100
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Mathematical Solution:PV = FV (PVIF i, n )
PV = 100 (PVIF .06, 5 ) (use PVIF table, or)
PV = FV / (1 + i)n
PV = 100 / (1.06)5 = $74.73
Present Value - single sumsIf you receive $100 five years from now, what is the PV of that $100 if your opportunity cost is 6%?
00 5 5
PV = PV = -74.-74.7373 FV = 100 FV = 100
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Calculator Solution: P/Y = 1 I = 7 N = 15 FV = 1,000 PV = -362.45
Present Value - single sumsWhat is the PV of $1,000 to be received 15 years from now if your opportunity cost is 7%?
00 15 15
PV = PV = -362.-362.4545 FV = 1000 FV = 1000
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Mathematical Solution:PV = FV (PVIF i, n )
PV = 100 (PVIF .07, 15 ) (use PVIF table, or)
PV = FV / (1 + i)n
PV = 100 / (1.07)15 = $362.45
Present Value - single sumsWhat is the PV of $1,000 to be received 15 years from now if your opportunity cost is 7%?
00 15 15
PV = PV = -362.-362.4545 FV = 1000 FV = 1000
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Calculator Solution: P/Y = 1 N = 5 PV = -5,000 FV = 11,933 I = 19%
00 5 5
PV = -5000PV = -5000 FV = 11,933 FV = 11,933
Present Value - single sumsIf you sold land for $11,933 that you bought 5 years ago for $5,000, what is your annual rate of return?
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Mathematical Solution: PV = FV (PVIF i, n )
5,000 = 11,933 (PVIF ?, 5 )
PV = FV / (1 + i)n
5,000 = 11,933 / (1+ i)5 .419 = ((1/ (1+i)5) 2.3866 = (1+i)5
(2.3866)1/5 = (1+i) i = .19
Present Value - single sumsIf you sold land for $11,933 that you bought 5 years ago for $5,000, what is your annual rate of return?
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Calculator Solution:•P/Y = 12 FV = 500• I = 9.6 PV = -100•N = 202 months
Present Value - single sumsSuppose you placed $100 in an account that pays 9.6% interest, compounded monthly. How long will it take for your account to grow to $500?
00 ? ?
PV = -100PV = -100 FV = 500 FV = 500
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Present Value - single sumsSuppose you placed $100 in an account that pays 9.6% interest, compounded monthly. How long will it take for your account to grow to $500?
Mathematical Solution:
PV = FV / (1 + i)n
100 = 500 / (1+ .008)N
5 = (1.008)N
ln 5 = ln (1.008)N
ln 5 = N ln (1.008)1.60944 = .007968 N N = 202
months
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Hint for single sum problems:
• In every single sum present value and future value problem, there are four variables:
FV, PV, i and n.• When doing problems, you will be
given three variables and you will solve for the fourth variable.
• Keeping this in mind makes solving time value problems much easier!
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The Time Value of Money
Compounding and Discounting
Cash Flow Streams
0 1 2 3 4
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•Annuity: a sequence of equal cash flows, occurring at the end of each period.
0 1 2 3 4
Annuities
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Examples of Annuities:
• If you buy a bond, you will receive equal semi-annual coupon interest payments over the life of the bond.
• If you borrow money to buy a house or a car, you will pay a stream of equal payments.
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• If you buy a bond, you will receive equal semi-annual coupon interest payments over the life of the bond.
• If you borrow money to buy a house or a car, you will pay a stream of equal payments.
Examples of Annuities:
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Calculator Solution: P/Y = 1 I = 8 N = 3 PMT = -1,000 FV = $3,246.40
Future Value - annuityIf you invest $1,000 each year at 8%, how much would you have after 3 years?
0 1 2 3
10001000 10001000 1000 1000
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Calculator Solution: P/Y = 1 I = 8 N = 3 PMT = -1,000 FV = $3,246.40
Future Value - annuityIf you invest $1,000 each year at 8%, how much would you have after 3 years?
0 1 2 3
10001000 10001000 1000 1000
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Mathematical Solution:FV = PMT (FVIFA i, n )
FV = 1,000 (FVIFA .08, 3 ) (use FVIFA table, or)
FV = PMT (1 + i)n - 1 i
FV = 1,000 (1.08)3 - 1 = $3246.40 .08
Future Value - annuityIf you invest $1,000 each year at 8%, how much would you have after 3 years?
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Calculator Solution: P/Y = 1 I = 8 N = 3 PMT = -1,000 PV = $2,577.10
0 1 2 3
10001000 10001000 1000 1000
Present Value - annuityWhat is the PV of $1,000 at the end of each of the next 3 years, if the opportunity cost is 8%?
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Mathematical Solution:PV = PMT (PVIFA i, n )
PV = 1,000 (PVIFA .08, 3 ) (use PVIFA table, or)
1PV = PMT 1 - (1 + i)n
i
1PV = 1000 1 - (1.08 )3 = $2,577.10
.08
Present Value - annuityWhat is the PV of $1,000 at the end of each of the next 3 years, if the opportunity cost is 8%?