4. Apply the classical theory. Consider a hypothetical economy described below: Y=C+I+G C = 50+ c(Y - T) I = 300-20r Y = 2,000 T = 900 G = 1,500

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4. Apply the classical theory. Consider a hypothetical economy described below:
Y=C+I+G
C = 50+ c(Y - T)
I = 300-20r
Y = 2,000
T = 900
G = 1,500
c = 0.6
where Y is output, C is consumption, I is investment, G is government purchases, Tis
taxes, and ris real interest rate in percent.
c) Suppose taxes are reduced by 80. First, calculate private saving, public saving,
and national saving. Second, find the new equilibrium interest rate. Third,
draw a graph that shows the change in the equilibrium.
d) Instead of reducing taxes by 80, suppose government purchases are increased
by 80. First, calculate private saving, public saving, and national saving.
Second, find the new equilibrium interest rate. Third, draw a graph that shows
the change in the equilibrium.
e) Why is the change in national saving larger in (d) than in (c) even if the
magnitude of the change in fiscal policy in (c) and (d) are the same?
Transcribed Image Text:4. Apply the classical theory. Consider a hypothetical economy described below: Y=C+I+G C = 50+ c(Y - T) I = 300-20r Y = 2,000 T = 900 G = 1,500 c = 0.6 where Y is output, C is consumption, I is investment, G is government purchases, Tis taxes, and ris real interest rate in percent. c) Suppose taxes are reduced by 80. First, calculate private saving, public saving, and national saving. Second, find the new equilibrium interest rate. Third, draw a graph that shows the change in the equilibrium. d) Instead of reducing taxes by 80, suppose government purchases are increased by 80. First, calculate private saving, public saving, and national saving. Second, find the new equilibrium interest rate. Third, draw a graph that shows the change in the equilibrium. e) Why is the change in national saving larger in (d) than in (c) even if the magnitude of the change in fiscal policy in (c) and (d) are the same?
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