Question

In: Economics

4. you are trying to develop a strategy for investing in two different stocks. The anticipated...

4. you are trying to develop a strategy for investing in two different stocks. The anticipated annual return for a $1,000 investment in each stock under four different economic conditions has the following probability distribution:

Probability Economic Condition Return Stock X Return Stock Y
0.1 Recession −100 50
0.3 Slow growth 0 150
0.3 Moderate growth 80 -20
0.3 Fast growth 150 -100

a. Expected return for stock X and for stock Y.

b. Standard deviation for stock X and for stock Y.

c. Covariance of stock X and stock Y.

d. Would you invest in stock X or stock Y? Explain

Solutions

Expert Solution

Probability Pi Xi Yi xi=Xi/1000 yi=Yi/1000 Pi*xi Pi*yi Pi*(xi-Xm)^2 Pi*(yi-ym)^2 Pi*(xi-Xm)*(yi-Ym)
0.1 -100 50 -10.00% 5.00% -1.00% 0.50% 0.0025281 0.0001296 -0.0005724
0.3 0 150 0.00% 15.00% 0.00% 4.50% 0.0010443 0.0055488 -0.0024072
0.3 80 -20 8.00% -2.00% 2.40% -0.60% 0.0001323 0.0003468 -0.0002142
0.3 150 -100 15.00% -10.00% 4.50% -3.00% 0.0024843 0.0038988 -0.0031122
Excpected return for X Xm= ∑Pi*xi 5.90%
Excpected return for Y Ym= ∑Pi*yi 1.40%
Variance of X Vx=∑Pi*(xi-Xm)^2 0.006189
Variance of Y Vy=∑Pi*(yi-Ym)^2 0.009924
Standard deviation for X =√Vx 7.87%
Standard deviation for Y =√Vy 9.96%
Covariance Cov(X,Y)= ∑Pi*(xi-Xm)*(yi-Ym) -0.00631

d) I would invest in stock X because it has higher expected return than Stock Y and also have lower standard deviation than stock Y.  


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