a) Calculation of mean return and variance return of stock
bond
Mean return calculation
Scenario | Probability (P) | Rate of return (R) | PxR |
Severe Rec. | 0.05 | -0.25 | -1.25% |
Mild | 0.25 | -0.05 | -1.25% |
Normal growth | 0.40 | 0.10 | 4% |
Boom | 0.30 | 0.15 | 4.5% |
Mean Return= | 6% |
Variance return calculation
Scenario | P | R | D | D2 | PxD2 |
Severe | 0.05 | -25% | -31%(-0.31) | 0.0961 | 0.004805 |
Mild | 0.25 | -5% | -11% | 0.0121 | 0.003025 |
Normal | 0.40 | 10% | 4% | 0.0016 | 0.00064 |
Boom | 0.30 | 15% | 9% | 0.0081 | 0.00243 |
Variance Return= | 0.0109 |
b) Calculation of covariance between stock and bond fund
Covariance between stock and bond fund = Correlation between stock
and bond x Standard deviation of Stock
x Standard deviation of Bond
For this calculation, we need to calculate mean return and
variance of bond also
Calculation of mean return of bond
Scenario | Probability (P) | Rate of return (R) | PxR |
Severe Rec. | 0.05 | -0.10 | -.5% |
Mild | 0.25 | 0.16 | 4% |
Normal growth | 0.40 | 0.09 | 3.6 |
Boom | 0.30 | -0.06 | -1.8 |
Mean Return= | 5.3% |
Calculation of variance of bond
Scenario | P | R | D | D2 | PxD2 |
Severe | 0.05 | -10% | -15.3% | 0.023409 | 0.00117045 |
Mild | 0.25 | 16 | 10.7% | 0.011449 | 0.00286225 |
Normal | 0.40 | 9 | 3.7% | 0.001369 | 0.0005476 |
Boom | 0.30 | -6% | -11.3% | 0.012769 | 0.0038307 |
Variance Return= | 0.008411 |
Variance of stock = 0.0109
Therefore Standard deviation(SD) of Stock = Square root
of stock variance = 0.1044
Variance of bond = 0.008411
Standard deviation(SD) of Bond = square root of bond variance =
0.091711
Correlation = Covariance between stock and
bond
SD of Stock x SD of Bond
Therefor Covariance = Correlation between Stock and bond
x SD of stock x SD of bond
= 0.1044 x 0.091711
=0.009574
Consider the following table: Scenario Severe recession Mild recession Normal growth Boom Probability 0.05 0.25 0.40...
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