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Suppose asset returns are driven by two common factors, namely GDP growth rate (factor 1) and interest rate (factor 2). There are three correctly priced well-diversified portfolios A, B and C. Their factor sensitivities and annual expected returns are given in the following table: Factor Sensitivity for Factor Sensitivity for Annual Expected Factor 1 Factor 2 Return Portfolio A bA1 = +2.0 ba2 = -3.0 4.50% Portfolio B bei = +1.5 bB2 = -1.0 6.25% Portfolio C bc1 = -1.0 bcz = +2.0 4.50% The risk-free rate is 4% per year. (A) Construct the unit factor portfolio for factor 2 with portfolios A, C, and the risk-free asset. What is the weight of portfolio A in this unit factor portfolio? (5%) (B) What is the expected return for the unit factor portfolio for factor 1? (3%) (C) What is the expected return for the unit factor portfolio for factor 2? (3%) (D) Suppose you invest in a well-diversified portfolio (X) which has a factor sensitivity of +4.0 for Factor 1 and a factor sensitivity of -3.0 for Factor 2. We can construct another portfolio Y with two unit factor portfolios for factor 1 and factor 2, and the risk- free asset to track portfolio X's factor sensitivities with respect to Factor 1 and Factor 2. What is the weight of the unit factor for factor 1 in portfilo Y? (2%) (E) What is the expected return of portfolio Y in question (D)? (2%) * Terminology: The unit factor portfolio describes the tracking portfolio for a given risk factor. The unit factor portfolio has loading 1 on the given risk factor and loadings 0 on other risk factors Suppose asset returns are driven by two common factors, namely GDP growth rate (factor 1) and interest rate (factor 2). There are three correctly priced well-diversified portfolios A, B and C. Their factor sensitivities and annual expected returns are given in the following table: Factor Sensitivity for Factor Sensitivity for Annual Expected Factor 1 Factor 2 Return Portfolio A bA1 = +2.0 ba2 = -3.0 4.50% Portfolio B bei = +1.5 bB2 = -1.0 6.25% Portfolio C bc1 = -1.0 bcz = +2.0 4.50% The risk-free rate is 4% per year. (A) Construct the unit factor portfolio for factor 2 with portfolios A, C, and the risk-free asset. What is the weight of portfolio A in this unit factor portfolio? (5%) (B) What is the expected return for the unit factor portfolio for factor 1? (3%) (C) What is the expected return for the unit factor portfolio for factor 2? (3%) (D) Suppose you invest in a well-diversified portfolio (X) which has a factor sensitivity of +4.0 for Factor 1 and a factor sensitivity of -3.0 for Factor 2. We can construct another portfolio Y with two unit factor portfolios for factor 1 and factor 2, and the risk- free asset to track portfolio X's factor sensitivities with respect to Factor 1 and Factor 2. What is the weight of the unit factor for factor 1 in portfilo Y? (2%) (E) What is the expected return of portfolio Y in question (D)? (2%) * Terminology: The unit factor portfolio describes the tracking portfolio for a given risk factor. The unit factor portfolio has loading 1 on the given risk factor and loadings 0 on other risk factors