作者angie0716 (大宝与困宝)
看板Economics
标题[作业] 总经达人请进
时间Mon May 19 23:12:44 2008
是我的小考 但考完了老师都不说答案@@
1) suppose the economy's production function is Y=A* K的0.3次方* N的0.7次方,
if K=2000 N=10 ,and A=1,then Y=246. if K and N both rise by 20%, and A is
unchanges, by how much does Y increase?
A) 5% B)20% C)10% D)15% (跪求算式)
2) if Y=A*N*(75+K/N), where K=1000, N=20,and A=10, whathappens if K doubles
and N doubles?
A) Y doubles B) Y quadruples C) Y increase 50% D) Y is unchanged
3) an economy has government purchases of 1000.desired national saving and
desired investment are given by
desired national saving=200 +5000r +0.10Y -0.20G
desired investment=1000 -4000r
when the full-employment level of output equals 5000, then the real
interest rate that clears the goods market will be
A) 16.67% B)1.11% C)5.56% D)21.11% (跪求算式~)
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◆ From: 140.134.213.201
1F：→ bookticket:看一下板规第六点...140.112.251.196 05/19 23:53
2F：→ davidlhs:第一题是常考的Solow Residual 61.20.163.189 05/20 00:50
3F：→ davidlhs:lnY=lnA+0.3lnK+0.7lnN 61.20.163.189 05/20 00:51
4F：→ davidlhs:y(dot)=A(dot)+0.3K(dot)+0.7N(dot) 61.20.163.189 05/20 00:52
5F：→ davidlhs:X(dot)=X的成长率, K(dot)=N(dot)=0.2 61.20.163.189 05/20 00:52
6F：→ davidlhs:A不变, 则, Y(dot)=You got it! 61.20.163.189 05/20 00:53
7F：→ davidlhs:第二题, K,N都两倍, K/N没变, 带进去.. 61.20.163.189 05/20 01:00
8F：→ davidlhs: 改错字--> 代 61.20.163.189 05/20 01:04