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Refer to the table below on the average risk premium of the S&P 500 over T-bills and the standard deviation of that risk premium. Suppose
Refer to the table below on the average risk premium of the S&P 500 over T-bills and the standard deviation of that risk premium. Suppose that the S&P 500 is your risky portfolio. Refer the table below on the average risk premium of the S&P 500 over T-bills and the standard deviation of that risk premium. Suppose that the S&P 500 is your risky portfolio Average Annual Returns S&P 5ee Portfolio S&P 5ee 1-Month Risk Standard Sharpe Period Portfolio T-Bills Premium Deviation Ratio 1926-2015 11.77 3.47 8.30 20.59 0.40 1992-2015 10.79 2.66 8.13 18.29 1978-1991 12.87 7.54 5.33 18.20 0.29 1948-1969 14.14 2.70 11.44 17.67 0.65 1926-1947 9.25 0.91 8.33 27.99 2.3e a. If your risk-aversion coefficient is A = 4 and you believe that the entire 19262015 period is representative of future expected performance, what fraction of your portfolio should be allocated to T-bills and what fraction to equity? Assume your utility function is u = En - 0.5 * A0? (Do not round intermediate calculations. Round your answers to 2 decimal places.) % T-bills Equity % b. If your risk-aversion coefficient is A = 4 and you believe that the entire 1970-1991 period is representative of future expected performance, what fraction of your portfolio should be allocated to T-bills and what fraction to equity? (Do not round intermediate calculations. Round your answers to 2 decimal places.) % T-bills Equity
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