If someone complains that she doesn't feel very well because she ate too much pizza, we would conclude that the marginal utility of the last piece of pizza eaten was
A) positive.
B) zero.
C) very large.
D) negative.

Question

Quizplus · Accepted Answer

The fact that she is complaining and not feeling well implies that the marginal utility of the last piece of pizza eaten was negative.

If Someone Complains That She Doesn't Feel Very Well Because