Section B: Short Answer Questions 1. Discuss why common stocks must earn a risk premium. 2. Discuss how the investor can use the separation theorem and utility theory to produce an efficient portfolio suitable for the investor's level of risk tolerance. 3. Two risky assets with returns ri, r, and standard deviations 01, 02, and correlation p. Calculate the weights for the following two optimal portfolios. a. Minimum volatility (variance) portfolio minimizes the overall risk min 0, s.t. W, + = 1 b. Maximum Sharpe Ratio portfolio delivers the highest expected return of unit of risk max pers w Op s.t. W1 + W2 = 1