Assume both portfolios A and B are well diversified, that E(rA) = 14.4% and E(rB) = 16.0%. If the economy has only one factor, and ßA = 1 while ßB = 1.2,What must be the risk-free rate?

Assume both portfolios A and B are well diversified, that E(rA) = 14.4% and E(rB) = 16.0%. If the economy has only one factor, and ßA = 1 while ßB = 1.2,What must be the risk-free rate?



Answer: 6.4


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