中级微观经济学第2次作业

1.共5道题，满分10分；

2.仅有一次作答机会，提交后不可修改；截止时间：10月7日 23:00

3.请正确填写姓名、学号，用作成绩查询。

姓名

____________

学号

____________

Clara's utility function is

If her marginal rate of substitution is -4, and she is consuming 14 units of Good X; how many units of Good Y must she be consuming?

A.30

B.68

C.18

D.63

Wanda Littlemore's utility function is

,Her income is 184. If the price of x is 1 and the price of y is 33, how many units of good x will Wanda demand?

A.17

B.19

C.22

D.24

Lorenzo lives on x and y alone. His utility function is . The prices of both goods are positive. Which of the following statements is necessarily true?

A. He will never buy more x than y.

B. He will buy equal amounts of the two goods.

C. He will always buy more y than x.

D. He will always buy more x than y.

Georgina consumes only grapefruits and pineapples. Her utility function is ; where x is the number of grapefruits consumed and y is the number of pineapples consumed. Georgina's income is 105, and the prices of grapefruits and pineapples are 1 and 3, respectively. How many grapefruits will she consume?

A. 63

B. 42

C.21

D. 7

Ambrose's brother Bartholomew has a utility function ; where x1 is his consumption of nuts and x2 is his consumption of berries. His income is 115, the price of nuts is 5 and the price of berries is 1. How many units of berries will Bartholomew demand?

A.16

B.35

C.22

D.70

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