Monotonicity of preferences implies that the indifference curves are ________.
Monotonicity of preferences implies that the indifference curves are ________.
I. Downward sloping
II. Positively sloping
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Correct answer: (A) Only I
Explanation
Monotonic preferences mean more of a good is better, so to keep utility constant a consumer must give up some of one good to get more of the other, which makes indifference curves slope downward.