State of Economy |
Probability of State of Economy |
Rate of Return If State Occurs |
|
Stock K |
Stock M |
||
Boom |
0.10 |
25% |
18% |
Growth |
0.20 |
10% |
20% |
Normal |
0.50 |
15% |
4% |
Recession |
0.20 |
-12% |
0% |
PLEASE show your work by hand (no excel)
(a): wK = 3000/5000 = 60% and wM = 2000/5000 = 40%
(b): Expected return = weighted return of K + weighted return of M
= 0.6*(0.1*25%+0.2*10%+0.5*15%+0.2*-12%) + 0.4*(0.1*18%+0.2*20%+0.5*4%+0.2*0%)
= 5.76%+3.12
= 8.88%
(c): Boom Erp = 0.6*25% + 0.4*18% = 22.2%
Growth Erp = 0.6*10%+0.4*20% = 14%
Normal Erp = 0.6*15%+0.4*4% = 10.6%
Recession Erp = 0.6*-12%+0.4*0% = -7.2%
Variance = 0.1*(22.2%-8.88%)^2 + 0.2*(14%-8.88%)^2 + 0.5*(10.6%-8.88%)^2+0.2*(-7.2%-8.88%)^2
= 0.1774%+0.0524%+0.0148%+0.5171%
= 0.7618
Standard deviation = 0.7618%^(1/2) = 0.873 or 8.73%
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