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Please use the information of stock A, stock B, and the market below, and answer the following questions. R A =2%+1.15 R M + e

  1. Please use the information of stock A, stock B, and the market below, and answer the following questions.

RA=2%+1.15RM+eA

RB=-1.2%+0.85RM+eB

M=7%, eA=8.6%, eB=11%, rf=1.5%, rm=7%

  1. What is the total risk (standard deviation) of stock A and stock B? What fractions of their total risk are diversifiable?

  1. What is the correlation between stocks A and B?

  1. What are the weights for stocks A and B in the optimal risky portfolio with only these two stocks? What is the expected return and risk of the portfolio?

  1. If the target return is 12% per year, what are the weights of risk-free assets, stock A, and stock B in a complete portfolio?

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