Why would we expect the reward-to-risk ratio (slope of the security market line) to be the same across all risky investments? Assume that you are able to earn 5 percent per unit of risk for investing in the stock of Company A and 7 percent for investing in Company B. How would you expect investors to act in light of this difference in reward-to-risk ratio? (Hint: Which stock do you think investors would want to buy?)