chapter 1 the investment setting questions to be answered: why do individuals invest ? what is an...
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Chapter 1The Investment SettingQuestions to be answered:
• Why do individuals invest ?
• What is an investment ?
• How do we measure the rate of return on an investment ?
• How do investors measure risk related to alternative investments ?
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Chapter 1The Investment Setting• What factors contribute to the rates of
return that investors require on alternative investments ?
• What macroeconomic and microeconomic factors contribute to changes in the required rate of return for individual investments and investments in general ?
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Defining an InvestmentA current commitment of $ for a period of time in order to derive future payments that will compensate for:– the time the funds are committed– the expected rate of inflation– uncertainty of future flow of
funds.
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Measures of Historical Rates of Return
Holding Period Return
10.1 $200
$220
Investment of Value Beginning
Investment of Value EndingHPR
1.1
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Measures of Historical Rates of Return
Holding Period Yield
HPY = HPR - 1
1.10 - 1 = 0.10 = 10%
1.2
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Annual Holding Period Return–Annual HPR = HPR 1/n
where n = number of years investment is held
Annual Holding Period Yield–Annual HPY = Annual HPR - 1
Measures of Historical Rates of Return
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Measures of Historical Rates of Return
Arithmetic Mean1.4
yields period holding annual of sum the HPY
:whereHPY/AM
n
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Measures of Historical Rates of Return
Geometric Mean1.5
n
n
HPRHPRHPR
:follows as returns period holding annual theofproduct the
:where1HPR GM
21
1
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Computation of HoldingPeriod Yield for a Portfolio
# Begin Beginning Ending Ending Market Wtd.Stock Shares Price Mkt. Value Price Mkt. Value HPR HPY Wt. HPY
A 100,000 10$ 1,000,000$ 12$ 1,200,000$ 1.20 20% 0.05 0.010 B 200,000 20$ 4,000,000$ 21$ 4,200,000$ 1.05 5% 0.20 0.010 C 500,000 30$ 15,000,000$ 33$ 16,500,000$ 1.10 10% 0.75 0.075
Total 20,000,000$ 21,900,000$ 0.095
21,900,000$ 20,000,000$
HPY = 1.095 - 1 = 0.095
= 9.5%
HPR = = 1.095
Exhibit 1.1
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Expected Rates of Return
• Risk is uncertainty that an investment will earn its expected rate of return
• Probability is the likelihood of an outcome
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Expected Rates of Return
n
i 1
i
Return) (Possible Return) ofy Probabilit(
)E(R Return Expected
)R(P....))(R(P))(R[(P nn2211
))(RP(1
ii
n
i
1.6
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Risk Aversion
The assumption that most investors will choose the least risky alternative, all else being equal and that they will not accept additional risk unless they are compensated in the form of higher return
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Probability Distributions
Risk-free Investment
0.00
0.20
0.40
0.60
0.80
1.00
-5% 0% 5% 10% 15%
Exhibit 1.2
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Probability Distributions
Risky Investment with 3 Possible Returns
0.00
0.20
0.40
0.60
0.80
1.00
-30% -10% 10% 30%
Exhibit 1.3
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Probability Distributions
Risky investment with ten possible rates of return
0.00
0.20
0.40
0.60
0.80
1.00
-40% -20% 0% 20% 40%
Exhibit 1.4
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Measuring the Risk of Expected Rates of Return
2n
1i
Return) Expected-Return (Possibley)Probabilit(
)( Variance
2iii
1
)]E(R)[RP(
n
i
1.7
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Measuring the Risk of Expected Rates of ReturnStandard Deviation is the square
root of the variance
1.8
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Measuring the Risk of Expected Rates of Return
Coefficient of variation (CV) a measure of relative variability that indicates risk per unit of return
Standard Deviation of ReturnsExpected Rate of Returns
E(R)i
1.9
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Measuring the Risk of Historical Rates of Return
variance of the series
holding period yield during period I
expected value of the HPY that is equal to the arithmetic mean of the series
the number of observations
2n
1ii
2 HPY)](EHPY[1
n
n
E(HPY)
HPY
i
2
1.10
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Determinants of Required Rates of Return
• Time value of money
• Expected rate of inflation
• Risk involved
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The Real Risk Free Rate (RRFR)
–Assumes no inflation.–Assumes no uncertainty about future
cash flows.–Influenced by time preference for
consumption of income and investment opportunities in the economy
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Adjusting For InflationReal RFR =
1Inflation) of Rate(1
RFR) Nominal1(
1.12
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Nominal Risk-Free Rate
Dependent upon– Conditions in the Capital Markets
– Expected Rate of Inflation
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Adjusting For Inflation
Nominal RFR = (1+Real RFR) x (1+Expected Rate of Inflation) -
1
1.11
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Facets of Fundamental Risk
• Business risk
• Financial risk
• Liquidity risk
• Exchange rate risk
• Country risk
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Risk Premium
f (Business Risk, Financial Risk, Liquidity Risk, Exchange Rate Risk, Country Risk)
orf (Systematic Market Risk)
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Risk Premium and Portfolio Theory
• The relevant risk measure for an individual asset is its co-movement with the market portfolio
• Systematic risk relates the variance of the investment to the variance of the market
• Beta measures this systematic risk of an asset
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Fundamental Risk versus Systematic Risk
• Fundamental risk comprises business risk, financial risk, liquidity risk, exchange rate risk, and country risk
• Systematic risk refers to the portion of an individual asset’s total variance attributable to the variability of the total market portfolio
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Relationship BetweenRisk and Return Exhibit 1.7
Rateof Return
Risk(business risk, etc., or systematic risk-beta)
RFR
SecurityMarket LineLow
RiskAverageRisk
HighRisk
The slope indicates therequired return per unit of risk
(Expected)
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Changes in the Required Rate of Return Due to Movements Along the SML
Rate
Risk(business risk, etc., or systematic risk-beta)
RFR
SecurityMarket Line
Expected
Movements along the curvethat reflect changes in therisk of the asset
Exhibit 1.8
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Changes in the Slope of the SML
RPi = E(Ri) - NRFR
where:
RPi = risk premium for asset i
E(Ri) = the expected return for asset i
NRFR = the nominal return on a risk-free asset
1.13
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Market Portfolio RiskThe market risk premium for the market portfolio (contains all the risky assets in the market) can be computed:
RPm = E(Rm)- NRFR where:
RPm = risk premium on the market portfolio
E(Rm) = expected return on the market portfolio
NRFR = expected return on a risk-free asset
1.14
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Change in Market Risk Premium
Exhibit 1.10
Risk
RFR
Original SML
New SML
Rm
Rm'
E(R)
NRFR
Expected Return
Rm´
Rm
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Capital Market Conditions, Expected Inflation, and the SML
Exhibit 1.11
Risk
RFR
Original SML
New SMLRate of Return
RFR'
NRFR
NRFR´
Expected Return
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The InternetInvestments Online
www.financecenter.com
www.investorama.com
www.moneyadvisor.com
www.investorguide.com
www.finweb.com
www.aaii.org
www.wsj.com
www.cob.ohio-state.edu/dept/fin/osudata.htm
www.ft.com
www.fortune.com
www.money.com
www.forbes.com
www.worth.com
www.barrons.com
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Future TopicsChapter 2
• The asset allocation decision
• The individual investor life cycle
• Risk tolerance
• Portfolio management