The risk-free rate of return is 6 percent based on an expected inflation premium of 3 percent. The expected rate of return on the market portfolio is 15 percent.

(a ) Determine the required rate of return for your period of Project company XYZ common stock with a beta of 0.60.

(b) Suppose the Market Portfolio's expected rate of return remains constant, but the expected inflation Premium rises from the current 3 percent to 4 percent. Determine the required rate of return for XYZ common stock.

(c ) Suppose the expected inflation premium remains at 3 percent, but the expected return of the Market Portfolio rises to 16 percent. Determine the required rate of return for XYZ common stock.