The following equations describe a certain economy C = 400 + 0 . 75 Y d → consumption function I = 200 − 100 r → Investment function T = 70 + 0 . 2 Y → Tax function G = 100 → Government expenditure X = 10 → Exports M = 150 + 0 . 06 Y → Import function MS = 4000 → Money supply MD = 0 . 2 Y − 10 r → Money demand
The following equations describe a certain economy C = 400 + 0 . 75 Y d → consumption function I = 200 − 100 r → Investment function T = 70 + 0 . 2 Y → Tax function G = 100 → Government expenditure X = 10 → Exports M = 150 + 0 . 06 Y → Import function MS = 4000 → Money supply MD = 0 . 2 Y − 10 r → Money demand
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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The following equations describe a certain economy
C = 400 + 0 . 75 Y d → consumption function
I = 200 − 100 r → Investment function
T = 70 + 0 . 2 Y → Tax function
G = 100 → Government expenditure
X = 10 → Exports
M = 150 + 0 . 06 Y → Import function
MS = 4000 → Money supply
MD = 0 . 2 Y − 10 r → Money demand
Required
Derive the IS and LM equations for three and four sector economies separately.
Calculate the equilibrium Y, r, C, T, M and I for three and four sector economies separately.
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