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Macroeconomics
13th Edition
ISBN:9781337617390
Author:Roger A. Arnold
Publisher:Roger A. Arnold
Chapter18: Debates In Macroeconomics Over The Rolse And Effects Of Government
Section: Chapter Questions
Problem 4QP
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Question

Consider an economy described by the following equations.

Y=C+I+G

C=100+.75(Y−T)

I=500−50r 

G=125

T=100

Where: Y is GDP, C is consumption, I is investment, G is government spending, T is taxes and r is the rate of interest.

 

Question:

1. Assuming that no change in fiscal policy, what is the effect of a reduction in interest rate from 4 percent to 3 percent on equilibrium output?

2. Suppose the Central Bank policy is to adjust the money supply to maintain the interest rate at 4 percent, so r=4. What is the value of output?

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