Outline

 Self Test

Lecture Notes

PROBLEM ON

THE IS-LM MODEL

 





I. An econometric study of the Kazakhstan economy produced the following set of equations:

A. Autonomous Consumption CA = 10 - .05 * P

B. Exports X = 15 - .05 * P

C. Investment I = 132 - 25 * r - .02 * P

D. Autonomous spending
multiplier MULTA = 5 - .01 P

E. Demand for real
balances LL = 12 - 5 * r + .05 * Y

(P is the price level expressed as an index number)


II. An economic team from the World Bank has projected the following for 1998.

A. G = 5

B. M = 200

B. P = 100

***************************************


QUESTIONS:

PART A: (The Structure of the Economy)

Project the following values for the Kazakhstan economy in 1998:

1. The autonomous spending
multiplier ________________

2. Autonomous consumption ________________

3. Exports ________________

4. Government spending ________________

4. Real Money Supply (M/P) ________________


PART B: (Calculating the IS Curve)

For each of the following assumed interest rates, calculate Investment, Autonomous spending and equilibrium GDP.

Interest Investment Autonomous GDP
Rate Spending

3 __________ __________ __________

4 __________ ___________ __________

5 __________ ___________ __________


In the space below plot the IS curve. (Label your axes.)








_____________________


PART C: (Calculating the LM Curve)

For each of the following assumed levels of GDP, calculate the equilibrium interest rate.

GDP Interest rate

100 __________

200 __________

300 __________

PART D: (Determining the equilibrium values)

In the space below, plot the IS curve and the LM curve. (Label your axes.)





____________________


What are the equilibrium levels of:

The interest rate _________________

GDP _________________

 

Back to the Beginning

 



PART F: (Calculating the effect of fiscal policy)

Assume that Government expenditures on goods and services are increased from 5 to 10.

G = 10

1. For each of the following assumed interest rates, calculate Investment, Autonomous spending and equilibrium GDP.

Interest Investment Autonomous GDP
Rate Spending

3 __________ __________ __________

4 __________ ___________ __________

5 __________ ___________ __________


2. In the space below, plot the LM curve, the old IS curve and the new IS curve. (Label your axes.)





____________________


3. What has happened to equilibrium GDP ? _____________________

4. What has happened to the interest rate?_____________________
PART F: (Calculating the effect of monetary policy)

Assume that the nominal money supply has been increased from 200 to 700.

M = 700

1. For each of the following assumed levels of GDP, calculate the equilibrium interest rate.

GDP Interest rate

100 __________

200 __________

300 __________

2. In the space below plot the new IS curve, the old LM curve and the new LM curve.










____________________________


3. What has happened to equilibrium GDP ? _____________________

4. What has happened to the interest rate?_____________________

5. What will happen to Investment spending? ___________________

6. What will happen to economic growth? _______________________

Back to the Beginning

 


PART B: (Calculating the Aggregate Demand Curve)

Assume that there have been no changes in fiscal policy or monetary policy.

G = 5

M = 200

Assume that the price level will double in 1998.

P = 200

A. Project the new values for the Kazakhzstan economy in 1998:

1. The autonomous spending
multiplier ________________

2. Autonomous consumption ________________

3. Exports ________________

4. Government spending ________________

4. Real Money Supply (M/P) ________________


B. Calculate the new IS and LM curves


Interest Investment Autonomous GDP
Rate Spending

3 __________ __________ __________

4 __________ ___________ __________

5 __________ ___________ __________



GDP Interest rate

100 __________

200 __________

300 __________


C. In the space below plot the new IS and LM curves. (Label the axes.)






__________________

D. On the basis of your graph, what do you estimate are the approximate new equilibrium levels of:

The interest rate _________________

GDP _________________


E. In the space below, plot points on the aggregate demand curve.

1. for P = 100 GDP = ____________

2. for P = 200 GDP = ____________

and draw a line connecting those two points. (Label you axes.)





____________________


F. What would happen to the AD curve if:


2. there was an increase in the nominal money supply (M)?
____________________________________

 

Back to the Beginning