Ifthemarginalutilityofthe3rdcupofcoffeei
2022-08-21 20:44 微观经济学
If the marginal utility of the 3rd cup of coffee is 23 and the marginal utility of the 4th cup is 15, then:
A.there is evidence of diminishing marginal utility.
B.it is optimal for the consumer to have 3 cups of coffee.
C.the price of a cup of coffee must be relatively low.
D.it is optimal for the consumer to have 4 cups of coffee.
正确答案：there is evidence of diminishing marginal utility.