未知题型
考虑一下由以下方程式所描述的经济:
Y=C+I+G+NX
Y=5000
G=1000
T=1000
C=250+0.75(Y-T)
I=1000-50r
NX=500-500ε
r=r*=5
A.在这个经济中,求出国民储蓄、投资、贸易余额以及均衡汇率。
B.现在G增加到1250,求出国民储蓄、投资、贸易余额以及均衡汇率的值。解释你的结果。
C.现在假设世界利率从5%上升到10%(G又是1000),求出国民储蓄、投资、贸易余额以及均衡汇率的值。解释你的结果。
Consider an economy described by the following equations:
Y=C+I+G+NX
y=5000
G=1000
T=1000
C=250+0.75(Y-T)
I=1000-50r
NX=500-500ε
r=r*=5
A.In this economy, solve for national saving, investment, the trade balance, and the equilibrium exchange ratE.
B.Suppose now that G rises to 1,250. Solve for national saving, investment, the trade balance, and the equilibrium exchange ratE.Explain what you finD.
C.Now suppose that the world interest rate rises from 5 to 10 percent. (G is again 1,000). Solve for national saving, investment, the trade balance, and the equilibrium exchange ratE.Explain what you finD.
A.75(Y-T)B.在这个经济中,求出国民储蓄、投资、贸易余额以及均衡汇率。
C.现在G增加到1250,求出国民储蓄、投资、贸易余额以及均衡汇率的值。解释你的结果。
D.现在假设世界利率从5%上升到10%(G又是1000),求出国民储蓄、投资、贸易余额以及均衡汇率的值。解释你的结果。
E.75(Y-T)
F.In
G.
H.Suppose
I.
J.Now
【参考答案】
a.国民储蓄S=Y-C-G=5000-[250+0.75×(5000-1000)]-1000=750。投资取决于利率,即......
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