假定某消费者的效用函数为 U=XY ,商品 X 、 Y 的价格分别为 P X =P Y =2 元,收入 m=40 元。 ( 1 )该消费者的均衡购买量是多少?最大的效用是多少? ( 2 )若 P Y 降为 1 元,替代效应使其购买两种商品的数量变为多少?收入效应使其购买量变为多少?(上海大学 2006 年考研)
【简答题】阅读对话,选择正确的答案。 A: Good morning, Liu Tao. B: Good morning, Wang Bing. It's Sunday. Are yor free? A: Yes, I am. Oh, what's this? B: It's a CD Walkman. It's old. A: Is it yours? B: Yes, it is. It is a pre...
【简答题】单词拼写(共10小题;每小题1分,满分10分)请根据首字母或汉语提示完成句子。 小题1:I would a__________ it if you could do me a favor. 小题2:Our car had a b________ on the motorway, so we walked a mile to look for help. 小题3:It is mine; you mu...