Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA = 2.60% + 0.90RM + eA RB = -2.00% + 1.20RM + eB OM = 26%; R-squarea = 0.21; R-squareg = 0.12 Assume you create portfolio Pwith investment proportions of 0.70 in A and 0.30 in B.

Essentials Of Investments
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Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
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Chapter1: Investments: Background And Issues
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Suppose that the index model for stocks A and B is estimated from excess returns with the following results:
RA
= 2.60% + 0.90RM + eA
RB
= -2.00% + 1.20RM + eB
OM = 26%; R-squarea = 0.21; R-squareg = 0.12
Assume you create portfolio P with investment proportions of 0.70 in A and 0.30 in B.
Transcribed Image Text:Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA = 2.60% + 0.90RM + eA RB = -2.00% + 1.20RM + eB OM = 26%; R-squarea = 0.21; R-squareg = 0.12 Assume you create portfolio P with investment proportions of 0.70 in A and 0.30 in B.
c. What is the firm-specific variance of your portfolio? (Do not round your intermediate calculations. Round your answer to 4 decimal
places.)
Firm-specific
d. What is the covariance between the portfolio and the market index? (Do not round your intermediate calculations. Round your
answer to 3 decimal places.)
Covariance
Transcribed Image Text:c. What is the firm-specific variance of your portfolio? (Do not round your intermediate calculations. Round your answer to 4 decimal places.) Firm-specific d. What is the covariance between the portfolio and the market index? (Do not round your intermediate calculations. Round your answer to 3 decimal places.) Covariance
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