A friend developed a portfolio that earns an expected return of22%22% and has a return standard deviation of 36%36%. You say that you can obtain the same expected return using the risk-free rate and market portfolio. Assume that the risk-free rate is 2.6%2.6%, the market return is 15.9%15.9%, and the market volatility is 25%25%. How much should you invest in the risk-free asset of an optimal portfolio to obtain the same expected return?

 

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Heres how to calculate the weight of the riskfree asset Wrf in an optimal portfolio to achieve the d... View the full answer