Explain the meaning and significance of a stock's beta coefficient. Illustrate your explanation by drawing, on graph, the characteristic lines for stocks with low, average, and high risk. (Hint: Let your three characteristic intersect at r_ir_m=6%, the assumed risk-free rate.)

Corporate Fin Focused Approach
5th Edition
ISBN:9781285660516
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Chapter6: Risk And Return
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Q1: Explain the meaning and significance of a stock's beta coefficient. Illustrate your explanation by drawing, on
one graph, the characteristic lines for stocks with low, average, and high risk. (Hint: Let your three characteristic
lines intersect at r_i=r_m=6%, the assumed risk-free rate.)
Q2: Define the following terms, using graphs or equations to illustrate your answers where feasible.
a) Risk, stand-alone risk b) Expected rate of return c) standard deviation, variance d) risk premium for stock i,
market risk premium e) Capital Asset Pricing Model (CAPM)
f) Expected return on a portfolio g) market risk, diversifiable risk h) Beta i) Security Market Line; SML equation j)
Slope of SML and its relationship to risk aversion.
Q3. Differentiate between (a) stand-alone risk and (b) risk in a portfolio context. How are they measured, and are
both concepts relevant for investors?
Q4. Can an investor eliminate market risk from a portfolio of common stocks? How many stocks must a portfolio
contain to be "reasonably well diversified"? Do all portfolios with, say, 50 stocks have about the same amount of
risk?
Q5. A stock's return for the past 3 years were 10%, -15%, and 35%. What is the historical average return? What is
the historical sample standard deviation?
Transcribed Image Text:Q1: Explain the meaning and significance of a stock's beta coefficient. Illustrate your explanation by drawing, on one graph, the characteristic lines for stocks with low, average, and high risk. (Hint: Let your three characteristic lines intersect at r_i=r_m=6%, the assumed risk-free rate.) Q2: Define the following terms, using graphs or equations to illustrate your answers where feasible. a) Risk, stand-alone risk b) Expected rate of return c) standard deviation, variance d) risk premium for stock i, market risk premium e) Capital Asset Pricing Model (CAPM) f) Expected return on a portfolio g) market risk, diversifiable risk h) Beta i) Security Market Line; SML equation j) Slope of SML and its relationship to risk aversion. Q3. Differentiate between (a) stand-alone risk and (b) risk in a portfolio context. How are they measured, and are both concepts relevant for investors? Q4. Can an investor eliminate market risk from a portfolio of common stocks? How many stocks must a portfolio contain to be "reasonably well diversified"? Do all portfolios with, say, 50 stocks have about the same amount of risk? Q5. A stock's return for the past 3 years were 10%, -15%, and 35%. What is the historical average return? What is the historical sample standard deviation?
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