A stock has a required return of 9%, the risk-free rate is 4.5%, and the market risk premium is 3%. a. What is the stock’s beta? b. If the market risk premium increased to 5%, what would happen to the...

A stock has a required return of 9%, the risk-free
rate is 4.5%, and the market risk premium is 3%.
a. What is the stock’s beta?
b. If the market risk premium increased to 5%, what would happen to the stock’s
required rate of return? Assume that the risk-free rate and the beta remain unchanged.