fmai chapter 2-lecture 1
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Time Value of MoneySupply of Loanable Funds
Demand for Loanable Funds
Equilibrium Interest Rate
Term Structure of Interest RatesForecasting Interest Rates
Chapter 2 Determinants of
Interest rates
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Interest Rate Fundamentals
Nominal interest rates - the
interest rate that are actuallyobserved in financial markets
±directly affect the value (price) of most securities traded in the market
±affect the relationship between spotand forward FX rates
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Time Value of Money and InterestRates
Time value refers to that a dollar received today is worth more than adollar received at some future date
Compound interest
± interest earned on an investment isreinvested
Simple interest
± interest earned on an investment is notreinvested
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Calculation of Simple Interest
Value = Principal + Interest (year 1) + Interest (year 2)
Example:
$1,000 to invest for a period of two years at 12 percent
Value = $1,000 + $1,000(.12) + $1,000(.12)
= $1,000 + $1,000(.12)(2)
= $1,240
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Value of Compound Interest
Value = Principal + Interest + Compounded interest
Value = $1,000 + $1,000(.12) + $1,000(.12) + $1,000(.12)(.12)
= $1,000[1 + 2(.12) + (.12)2]
= $1,000(1.12)2 continuous compounding
= $1,254.4
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Present Value of a Lump Sum Payment
PV function converts future cash flowsinto an equivalent present value bydiscounting future cash flows back tothe present using current marketinterest rate
± lump sum payment
±annuity
PV decreases as interest rates increase:the discount rate is higher for theforeseeable future.
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Calculating Present Value (PV) of aLump Sum payment
PV = FVt (1/(1 + i ))t = FVt (PVIFit )where:
PV = present value
FV = future value (lump sum) received in t years
i = simple annual interest rate earned
t = number of years in the investment horizon
PVIF = present value interest factor of a lump sum
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Calculating Present Value (PV) of a Lump Sumwith multiple interest payment per year
PV = FVn(1/(1 + i/m))nm = FV
n(PVIFi/m,nm)
where:
PV = present value
FV = future value (lump sum) received in n years
i = simple annual interest rate earned
n = number of years in investment horizon
m = number of compounding periods in a year
i/m = periodic rate earned on investments
nm = total number of compounding periods
PVIF = present value interest factor of a lump sum
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Calculating Present Value of aLump Sum
You are offered a security investment thatpays $10,000 at the end of 6 years in exchangefor a fixed payment today.
PV = FVn /(1 + i/m)nm =FV(PVIFi/m,nm)
8% interest PV= $10,000 /(1+0,08)6 = $6,301.70
12% interest PV= $10,000 /(1+0,12)6 = $5,066.31
16% interest PV= $10,000 /(1+0,16)6 = $4,104.42
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Calculation of Present Value (PV) of an Annuity
nm
PV = PMT§ ( 1/(1 + i/m))t = PMT(PVIFA i/m,nm)t = 1
where:PV = present value
PMT = periodic annuity payment received
during investment horizon
i/m = periodic rate earned on investmentsnm = total number of compounding periods
PVIFA = present value interest factor of an annuity
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Calculation of Present Value of anAnnuity
You are offered a security investment that pays $10,000 on
the last day of every year for the next 6 years in exchange
for a fixed payment today.nm
PV = PMT§(1 /(1 + i/m))t =PMT(PVIFAi/m,nm)t = 1
(at 8% interest) PV = $10,000(4.622880) = $46,228.80
If the investment pays on the last day of every quarter forthe next six years
(at 8% interest) PV = $10,000(18.913926) = $189,139.26
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Future Values Equations
FV of lump sum equation
FVn = PV(1 + i/m)nm = PV(FVIF i/m, nm)
FV of annuity payment equation
nm-1
FVn = PMT § (1 + i/m)t = PMT(FVIFAi/m, mn)t = 0
Note: the last value paid on Annuity pays no interest.
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Relation between Interest Ratesand Present and Future Values
PresentValue
(PV)
Interest Rate
Future
Value(FV)
Interest Rate
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Effective or Equivalent AnnualReturn (EAR)
Rate earned over a 12-month period
taking the compounding of interest into
account.EAR = (1 + r) c ± 1
Where c = number of compounding
periods per year Eg. A 16% annual return compounded
semiannually (r=16%/2=8%, c=2)
EAR = (1 + 0,08) 2 -1=16,64%
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Loanable Funds Theory
A theory of interest rate determinationthat views equilibrium interest rates in
financial markets as a result of thesupply and demand for loanable funds
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Determination of EquilibriumInterest Rates
Interest
Rate
Quantity of Loanable Funds
Supplied and Demanded
D S
I H
i
I L
E
Q
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Effect on Interest rates from a Shift inthe Demand Curve for or Supply curve
of Loanable FundsIncreased supply of loanable funds Increased demand for loanable funds
Quantity of
Funds Supplied
Interest
RateDD
SS
SS*
E
E *
Q*
i *
Q**
i **
Quantity of
Funds Demanded
DD
DD* SS
E E *
i *
i **
Q* Q**
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Factors Affecting Nominal InterestRates
Inflation
Real Interest Rate Default Risk
Liquidity Risk
Special Provisions Term to Maturity
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Inflation and Interest Rates: The
Fisher Effect
Real Interest Rate (RIR) is the nominal interest
rate minus expected inflation.
the interest rate should compensate an investor
for both expected inflation and the opportunity
cost of foregone consumption---the Fisher effect
i = RIR + Expected(IP)or RIR = i ± Expected(IP)
Example: 3.49% - 1.60% = 1.89%
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Default Risk Premium and InterestRates
The risk that a security¶s issuer will default
on that security by being late on or missing
an interest or principal payment
DRP j = i j t - i Tt i Tt Denotes rate paid on treasury bill, which is risk free
interest rate.
Example for December 2003:
DRP Aaa = 5.66% - 4.01% = 1.65%
DRP Baa = 6.76% - 4.01% = 2.75%
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Term to Maturity and InterestRates: Yield Curve
Yield to
Maturity
Time to Maturity
(a)
(b)
(c)
(a) Upward sloping
(b) Inverted or downward
sloping
(c) Flat
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Term Structure of Interest Rates
Unbiased Expectations Theory
Liquidity Premium Theory Market Segmentation Theory
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Expectations Theory
Key Assumption: Bonds of different maturities areperfect substitutes
Implication: R e on bonds of different maturities
are equal
Investment strategies for two-period horizon
1. Buy $1 of one-year bond and when matures buy another one-year bond
2. Buy $1 of two-year bond and hold it
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Expectations Theory
Investment strategies for two-period
horizon
1. Buy $1 of one-year bond and whenmatures buy another one-year bond
2. Buy $1 of two-year bond and hold it
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it
!it
it 1 i
t 2 ... it 1
n
More generally for n-period bond«
Equation 2 states: Interest rate on longbond equals the average of short ratesexpected to occur over life of long bond
(2)
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Expectations Theoryand Term Structure Facts
Explains why yield curve has different slopes
1. When short rates are expected to rise in future,average of future short rates = i
nt is above today's
short rate; therefore yield curve is upward sloping.2. When short rates expected to stay same in future,
average of future short rates same as today's, andyield curve is flat.
3. Only when short rates expected to fall will yieldcurve be downward sloping.
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Market Segmentation Theory
Key Assumption: Bonds of different maturities arenot substitutes at all
Implication: Markets are completely
segmented; interest rate at each maturity determinedseparately
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Market Segmentation Theory
Explains fact 3²that yield curve is usuallyupward sloping ± People typically prefer short holding periods and thus have
higher demand for short-term bonds, which have higher prices and lower interest rates than long bonds
Does not explain fact 1 or fact 2 because itsassumes long-term and short-term rates aredetermined independently
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Liquidity Premium Theory
Key Assumption: Bonds of different maturitiesare substitutes, but are notperfect substitutes
Implication: Modifies ExpectationsTheory with features of MarketSegmentation Theory
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i
t !
it
it 1
e
it 2
e
... it 1
e
n
lnt
Liquidity Premium Theory
Results in following modification of PureExpectations Theory
(3)
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Figure 5.6 Relationship Between the Liquidity Premium and Pure Expectations Theory
Liquidity Premium Theory
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Forecasting Interest Rates
Forward rate is an expected or ³implied´ rate
on a security that is to be originated at some
point in the future using the unbiased
expectations theory _ _
1R 2 = [(1 + 1R 1)(1 + (2f 1))]1/2 - 1
where 2f 1 = expected one-year rate for year 2, or the implied
_ _ forward one-year rate for next year 2f 1=[(1+ 1R2 )2 /(1+1R1)]-1
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Present Value of Cash Flows:Example
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U.S. Real and Nominal InterestRates
Figure 3-1 Real and Nominal Interest Rates (Three-Month Treasury Bill), 1953±2004Sample of current rates and indexeshttp://www.martincapital.com/charts.htm
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Yield Curves
Dynamic yield curve that can show the curveat any time in history
http://stockcharts.com/charts/YieldCurve.html
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