consider the following data for a single factor model economy. all portfolios are well diversified. suppose portfolio p has an expected return of 19% and beta of 2.0. portfolio m has an expected retrun of 12% and beta of 1.0. assume that the risk free rate is 7% and that arbitrage opportunities exist. what is the portfolio p's alpha?

Consider an economy with a (net) risk-free return r1 = 0:1 and a market portfolio with normally distributed return, with ErM = 0:2 and 2M = 0:02. Suppose investor A has CARA preferences, with risk aversion coe¢ cient equal to 1 and an endowment of 10. a) Write down the maximization problem for the investor. b) Determine the amount invested in the risky portfolio and in the risk-free asset. c) Suppose another investor (B) has a coe¢ cient of absolute risk aversion equal to 2 (and the same endowment 10). Compute his optimal portfolio and compare it to that of investor A. Explain the di§erent results for investors A and B. d) Finally, consider Investor C with mean-variance preferences Ec V ar(c) (and endowment 10). Compute his optimal portfolio and compare it to that of investors A and B (as obtained in questions b and c). Compare your result with those obtained for investors A and B.

Consider an asset with a beta of 1.2, a risk-free rate of 4.3%, and a market return of 12%. What is the reward-to-risk ratio in equilibrium? What is the expected return on the asset?

Consider the information given in the Table 2A and complete Table 2B. From the completed Table 2B, use the information to graphically present the Security Market Line (SML). Compute the slope of thisline.Hints:i) When 100% money is invested in asset X (portfolio weight = 1), the beta of the portfolio is 0.85ii) Since the risk-free asset is, well, risk-free, its beta will be zero

We believe that the single factor model can predict any individual asset’s realized rate of return well. Both Portfolio A and Portfolio B are well-diversified: ri = E(ri) + βiF + Ei, where E(ei) = 0 and Cov(F, i) = 0   A B β 1.2 0.8 E(r) 0.1 0.08 (1) What is the rate of return of the risk-free asset? (2) What is the expected rate of return of the well-diversified portfolio C with βC = 1.6, which also exists in the market? (3)  A fund constructs a well-diversified portfolio D. Studies show that βD = 0.6. The expected rate of return of D is 0.06. Is there an arbitrage opportunity? If so, construct a trading strategy to earn profits with no risk. If not, why?

Consider the following information for four portfolios, the market, and the risk-free rate (RFR): Portfolio Return Beta SD A1 0.15 1.25 0.182 A2   0.1  0.9 0.223 A3 0.12  1.1 0.138 A4 0.08  0.8 0.125 Market 0.11     1    0.2 RFR 0.03     0       0 Refer to Exhibit 18.6. Calculate the Jensen alpha Measure for each portfolio.   a. A1 = 0.014, A2 = -0.002, A3 = 0.002, A4 = -0.02     b. A1 = 0.002, A2 = -0.02, A3 = 0.002, A4 = -0.014     c. A1 = 0.02, A2 = -0.002, A3 = 0.002, A4 = -0.014     d. A1 = 0.03, A2 = -0.002, A3 = 0.02, A4 = -0.14     e. A1 = 0.02, A2 = -0.002, A3 = 0.02, A4 = -0.14

There are two assets 1 and 2, with returns X and Y correspondingly. Return X is a random variable with mean 1 and variance 1; return Y is a random variable with mean 1 and variance 3. We know that the expectation of X*Y is equal to 0. Find the share of asset 1 in the risk-minimizing portfolio.

Consider the following graph.   According to Markowitz’ portfolio theory, which point on the graph represents optimal portfolio?       C     A     B     D

* Consider the following portfolio II: long one call with exercise price E₁, long one put with exercise price E2, short one call with exercise price E, and short one put with exercise price E1+E2 E. Consider the case E₁ < E < E2 where E < 2 ⚫ (a) Write down the pay-off function A(S) for the portfolio II. • • (b) What is the value of the pay-off function when S < E₁? (c) What is the value of the pay-off function when E < S < E₂?

Suppose the CAPM is true. Consider two assets, X and Y, and the market M. Suppose cov(X,M) = .3, cov(Y,M) = .5. %3D (a) Is the expected return higher on X or Y? (b) Suppose var(M) = 1.5, what are the betas of X and Y? (c) Suppose the expected market return is 20% and the risk free rate is 5%, what is the expected returns of X and Y?. (d) Given your analysis in (a)-(c), what type of investor would prefer asset X to asset Y?