题目内容
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[主观题]
莎伦有如下的效用函数:式中，X是她对棒棒糖的需求量，PX=1美元，Y是她对浓咖啡的需求量，PY⌘
莎伦有如下的效用函数:
式中，X是她对棒棒糖的需求量，PX=1美元，Y是她对浓咖啡的需求量，PY=3美元。
(1)推导莎伦对棒棒糖和浓咖啡的需求函数。
(2)假定其收入I为100美元，莎伦会消费多少棒棒糖，多少浓咖啡？
(3)收入的边际效应为多少？
Sharon has the following utility function:
where X is her consumption of candy bars, with price PX= $1, and Y is her consumption of espressos, with PY= $3.
a. Derive Sharon ' s demand for candy bars and espressos.
b. Assume that her income I= $ 100. How many candy bars and how many espressos will Sharon consume？
c. What is the marginal utility of income？
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