作者tessamio (tessamio)
看板Economics
标题[考试] consumer surplus
时间Mon Jan 1 21:27:40 2007
学校midterm题目
Nick can purchase each milkshake for $2.
For the first milkshake purchased Nick is willing to pay $4,
for the second milkshake $3,
for the third milkshake $2 and for the fourth milkshake $1.
What is the value of Nick's consumer surplus?
我的想法:价格线以上 跟demand curve以下的面积
不是3 x 3 / 2吗?
为什麽答案是3?
谢谢!
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◆ From: 220.134.28.140
※ 编辑: tessamio 来自: 220.134.28.140 (01/01 21:31)
1F：推 jl740905:题目没有说需求是连续的直线218.166.165.145 01/01 21:56
2F：→ jl740905:所以你不应以叙述推断出需求线218.166.165.145 01/01 21:57
3F：→ jl740905:算法应为4+3-2*2=3218.166.165.145 01/01 21:57
4F：推 kevinapo:应该是2+1+1-1=3 不需要乘法吧140.112.241.164 01/01 22:19
5F：推 tessamio:谢谢两位的解答^^^ 220.134.28.140 01/02 00:34
6F：推 kissmelo:因为第四单位NICK是愿意但不能够.... 59.117.8.198 01/02 01:10