Question: There is ONE risk factor, the interest rate risk factor. Investors can borrow at the risk-free rate. Portfolio (A) is well diversified with the following
There is ONE risk factor, the interest rate risk factor. Investors can borrow at the risk-free rate. Portfolio (A) is well diversified with the following risk-return profile.
| Beta | Risk Premium | |
| Portfolio (A) | 0.8 | 5% |
| Interest Rate Risk Factor | 1 | 6% |
| Risk Free rate = 4% |
For a portfolio that earns a positive risk-free profit, a trader would:
a) Buy Portfolio (A) and short sell Interest rate risk factor, borrow at risk-free rate
b) Buy Portfolio (A) and short sell Interest rate risk factor
c) Short sell Portfolio (A), buy interest rate risk factor, borrow at risk-free rate
d) Buy Portfolio (A), buy interest rate risk factor, borrow at risk-free rate
Please explain. Thank you!
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