Question 3 The CAPM assumptions stipulate that if a single investor decides to purchase shares of a specific form. This action will like for the shares of this form, thereby causing and not affect prices; the expected return to remain unchanged; the risk premium will stay the same drive prices up : expected returns to fall; risk premiums to fall drive prices up ; expected return to rise ; risk premiums to risch drive prices down ; expected returns to fall; risk premiums to fall drive prices down : expected returns to rise: risk premiums to rise