總經達人請進 - 經濟

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是我的小考 但考完了老師都不說答案@@

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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All Comments

Tristan Cohan avatarTristan Cohan2008-05-24
看一下板規第六點...
Donna avatarDonna2008-05-27
第一題是常考的Solow Residual
David avatarDavid2008-05-27
lnY=lnA+0.3lnK+0.7lnN
Ina avatarIna2008-05-31
y(dot)=A(dot)+0.3K(dot)+0.7N(dot)
X(dot)=X的成長率, K(dot)=N(dot)=0.2
Caroline avatarCaroline2008-06-02
A不變, 則, Y(dot)=You got it!
Thomas avatarThomas2008-06-06
第二題, K,N都兩倍, K/N沒變, 帶進去..
Freda avatarFreda2008-06-09
改錯字--> 代