試題詳解

6. Suppose the price of A is $20, the price of B is $10, and that the consumer is currently spending all available income. At the consumer’s current consumption basket the marginal utility of A is 8 and the marginal utility of B is 2.
(A)The consumer is currently maximizing utility.
(B) The consumer could increase utility by consuming more of good A and less of good B .
(C) The consumer could increase utility by consuming more of good B and less of good A .
(D)Nothing can be said about the consumer’s utility because we do not know the consumer’s income or utility function.