Answer:
The expected rate of return and the market risk premium on the market is 7% and 4% respectively
Explanation:
In this question, we apply the Capital Asset Pricing Model (CAPM) formula which is shown below
Expected rate of return = Risk-free rate of return + Beta × (Market rate of return - Risk-free rate of return)
Let us assume Risk free-rate of return be X
And, the market rate of return be Y
For Stock A
5% = Risk-free rate of return + 0.5 × (Market rate of return - Risk-free rate of return)
5% = X + 0.5 × (Y - X)
5% = 0.5X + 0.5Y
For Stock B
9% = Risk-free rate of return + 1.5 × (Market rate of return - Risk-free rate of return)
9% = X + 1.5 × (Y - X)
9% = -0.5X + 1.5Y
By comparing the equations,
14% = 2Y
Y = 7%
And, X equals to
5% = 0.5X + 3.5%
1.5% = 0.5X
X = 3%
So, expected rate of return is 7%
And the market risk premium
= 7% - 3%
= 4%