If total utility is unchanged, then marginal utility is
A) negative.
B) positive.
C) zero.
D) increasing.

Question

Quizplus · Accepted Answer

If the total utility is unchanged, it means that adding one more unit of the good does not increase the overall satisfaction of the consumer. Therefore, the marginal utility of that additional unit is zero, indicating that consumption of more units does not bring any additional benefit to the consumer.

If Total Utility Is Unchanged, Then Marginal Utility Is