What are the weights for investing in the risk-free asset

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Reference no: EM13618282

Suppose that a fund that tracks the S&P has mean E(Rm) = 16% and standard deviation M = 10%, and suppose that the T-bill rate Rf = 8%. Answer the following questions about efficient portfolios:

a) What is the expected return and standard deviation of a portfolio that has 125% of its wealth in the S&P, financed by borrowing 25% of its wealth at the risk-free rate?

b) What are the weights for investing in the risk-free asset and the S&P that produce a standard deviation for the entire portfolio that is twice the standard deviation of the S&P? What is the expected return on that portfolio?

c) Assume investors' preferences are characterized by the utility function . What would be the optimal allocation, i.e. the investment weights on S&P and T-bill, for an investor with a risk-aversion coefficient of A=4? What is the expeted return and standard deviation of this optimal portfolio?

Reference no: EM13618282

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