The efficient frontier of risky assets is
A. the portion of the minimum-variance portfolio that lies above the global minimum
variance portfolio.
B. the portion of the minimum-variance portfolio that represents the highest standard
deviations.
C. the portion of the minimum-variance portfolio that includes the portfolios with the
lowest standard deviation.
D. the set of portfolios that have zero standard deviation.
The expected return-beta relationship
A. is the most familiar expression of the CAPM to practitioners.
B. refers to the way in which the covariance between the returns on a stock and returns
on the market measures
the contribution of the stock to the variance of the market portfolio, which is beta.
C. assumes that investors hold well-diversified portfolios.
D. All of the options are true.
E. None of the options are true.
Consider the Treynor-Black model. The alpha of an active portfolio is 2%. The
expected return on the market
index is 12%. The variance of the return on the market portfolio is 4%. The
nonsystematic variance of the active
portfolio is 2%. The risk-free rate of return is 3%. The beta of the active portfolio is
1.15. The optimal proportion
to invest in the active portfolio is
A. 48.7%.
B. 98.3%.
C.47.6%.
D. 100.0%.