Question 7
Sarah has mean-variance preferences represented by the utility function , where is the expected rate of return and is the standard deviation of the rate of return. He is considering two assets A and B: asset A has a 12% rate of return with 0.40 probability and a 18% rate of return with 0.60 probability, whereas asset B has a 28% rate of return with 0.50 probability and an 8% rate of return with 0.50 probability. Suppose Sarah has to choose between investing in asset A only or asset B only. Which asset would Sarah prefer?
Asset A
Asset B
Sarah is indifferent between the two assets
Information is not sufficient.