You are given the following information regarding a hypothetical economy: Consumption function is C= 0.3+0.8(Y-T) Investment I=3.5- 50i G= 3 T= 2.5 The demand for real money is M/P=2+0.2Y-50i. The real stock of money is 3. Answer the following questions: а. Derive the IS Curve b. Derive the LM Curve с. What are the equilibrium equilibrium output and interest rate?

You are given the following information regarding a hypothetical economy: Consumption function is C= 0.3+0.8(Y-T) Investment I=3.5- 50i G= 3 T= 2.5 The demand for real money is M/P=2+0.2Y-50i. The real stock of money is 3. Answer the following questions: а. Derive the IS Curve b. Derive the LM Curve с. What are the equilibrium equilibrium output and interest rate?

MACROECONOMICS FOR TODAY

10th Edition

ISBN:9781337613057

Author:Tucker

Publisher:Tucker

Chapter8: The Keynesian Model

Section: Chapter Questions

Problem 9SQP

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QUESTION TWOConsider the consumption function is given byC = 200 + 0.75YDWhere YD is disposable income Suppose that the economy faces an investment function of the formI = 200 – 25r.Suppose further that G =T = 100 and the money demand function takes the form(M/P) = Y – 100r.The money supply M is 1,000 and Price level P is 2Required:(i) Formulate the IS equation and the LM equation.(ii) Find the equilibrium interest rate and the equilibrium level of income. (iii) If government expenditure increases by 50, by how much does the IS curveshift? (iv) If the money supply increases by 200. How much does the LM curve shift?
b
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I need help with 4.5 A only . You will have to calculate marginal propensities to consume and to save. This is chapter 8 from the principals of macroeconomics thirteen edition text book .
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