The management of Minuscule Investments Ltd. is considering two investment proposals, X and Y, either of which may be had for $10 million. Because of a limited capital budget, only one of the two can be selected. Their one-period payoffs are, respectively,

Investment X

Investment Y

Payoffs

$15

$25

$18

$20

$22

Probability

½

½

1/3

1/3

1/3

Which set of payoffs is preferable and why? (Hint: Consider second-degree stochastic dominance in answering this question.)