Consider the following information about three stocks:
a. If your portfolio is invested 40 percent each in A and B and 20 percent in C, what is the portfolio expected return? The variance? The standard deviation?
b.If the expected T-bill is is 3.80 percent, what is the expected premium on the portfolio?
c. If the expected inflation rate is 3.50 percent, what are the appropriate and exact expected real returns on the portfolio?What are the approximate and exact expected real risk premiums on the portfolio?
please answer all parts
State of Economy | Probability | Stock A | Stock B | Stock C | ||
Boom | 0.25 | 0.10 | 0.10 | 0.05 | ||
Normal | 0.6 | 0.24 | 0.24 | 0.12 | ||
Bust | 0.15 | 0.06 | 0.06 | 0.03 | ||
Weights | 0.40 | 0.40 | 0.20 | |||
T.bill rate | 3.80% | |||||
Inflation rate | 3.50% | |||||
a | b | c=a*b | (b-sum of c) | |||
State of Economy | Probability | Portfolio return | Product | Return Deviation | Squared Deviation | Product |
Boom | 0.25 | 0.338 | 0.0845 | 0.201 | 0.040401 | 0.0101 |
Normal | 0.6 | 0.138 | 0.0828 | 0.001 | 0.000001 | 6E-07 |
Bust | 0.15 | -0.202 | -0.03 | -0.339 | 0.114921 | 0.017238 |
Weights | E ( R ) | 0.137 | Variance | 0.027339 |
Standard deviation | Square of variance | 0.165345 | |
2 | |||
Expected Risk premium | E ( R ) - Risk free return | 0.137-0.038 | 0.099 |
Approximate real return | 0.137 - 0.035 | 0.102 | |
exact real return | 1 + E(R) = (1 + h)[1 + e(ri)] | 1+0.137= (1+0.038)(1+E(R)) | |
E ( R ) = (1.137/1.038)-1 | 0.0954 | ||
Approximate real risk premium | Risk premium - infation rate | 0.137-0.035 | 0.102 |
exact real return | real risk premium /1+inflation rate | 0.102/1.035 | 0.0986 |
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