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( 4 6 POINTS ) A pension fund manager is co nsidering investing in 2 mutual funds: a stock fund ( S ) and a

(46 POINTS) A pension fund manager is co
nsidering investing in 2 mutual funds: a stock fund
(S) and a long-term corporate bond fund (B). The following table presents the expected return and
standard deviation of the stock fund and of the bond fund:
The correlation between the stock fund and the bond fund is =0.3. The covariance (rE,rD) is:
Cov(rE,rD)=ED=.3(.26)(.12)=0.0094
(a) Find the mininimum variance portfolio. That is,
(i) Find the proportion invested in the stock fund, wEMVP and the proportion invested in the bond
fund, wDMVP=1-wEMVP.
(ii) Find the expected return of the minimum variance portfolio, E(rMVP) and its standard devia-
tion, MVP.
(b)(i) Find the portfolio frontier of the 2 risky funds. Vary wE and wD=1-wE in increments of
.10. For each of these pair of values calculate ErP,P2 and P. With these data complete the followingtable: (Use excel to perform these calculations and provide your excel sheet.)
and (ii) draw with precision the portfolio frontier on a graph with E(rP) on the vertical axis and P
on the horizontal axis. On that graph also identify the minimum variance portfolio and the efficient
portfolio frontier.
(c) A risk averse investor with the following utility function
=ErP-A12P2
wants to choose how much to invest in each of the corporate bond fund and equity fund to maximize
his/her utility. Let A=5. Find the optimal choice of each fund.
(d) A Treasury Bill money market fund is now available with a 3% safe return (rf=.03). Draw the
capital market line (CML). Identify the intercept on the vertical axis and the tangency point with the
efficient portfolio frontier for risky assets. What is the efficient set in this case?(ii) Find the expected return of the market portfolio, E(rM) and its standard deviation, M.
(iii) Find the Sharpe ratio.
(f) A risk averse investor with the following utility function
=ErP-A12P2
wants to choose how much to invest in the money market fund yielding a safe rate of return rf as well
as in the market portfolio, M to maximize his/her utility. Let A=5, find the opitmal choice of each
fund.
(g) Another investor requires a target expected return of 12%, that is E(rTARGET)=0.12. Find the
standard deviation of her portfolio, TARGET. What proportion will she invest in the money market
fund, wMONEY? What proportion will she invest in the equity fund, wS? What proportion will she
invest in the bond fund, wB?
(e) Find the market portfolio.
(i) That is find the proportion invested in the stock fund, wEM and the proportion invested in the
bond fund, wDM=1-wSM of the market portfolio
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