Suppose you and your brother go out for dinner. Your brother orders a cheeseburg
ID: 1104106 • Letter: S
Question
Suppose you and your brother go out for dinner. Your brother orders a cheeseburger and fries. When the food first arrives, you ask your brother if you can have a few fries. He looks at you like you're crazy, and says, "No!" Then a few minutes later, after you've both started eating, you ask again, and your brother reluctantly says, "Sure. Go ahead." An economist's explanation for your brother's change of heart is most likely to be that
A.your brother's marginal utility from eating additional french fries increases as he eats more of them, so he's more likely to share with you after he's eaten a few.
B.your brother's marginal utility from eating additional french fries declines as he eats more of them, so he's more likely to share with you after he's eaten a few.
C. your brother's total utility increases as he eats more french fries, so he's more likely to share with you after he's eaten a few.
D.your brother's total utility declines as he eats more french fries, so he's more likely to share with you after he's eaten a few.
Explanation / Answer
Option B is correct
B.your brother's marginal utility from eating additional french fries declines as he eats more of them, so he's more likely to share with you after he's eaten a few. (additional consumption of french fries gives him progressively lower utility)