6. What change in government spending (airports, police, teachers, roads, etc.) would reestablish full employment with price stability?

Brief Principles of Macroeconomics (MindTap Course List)
8th Edition
ISBN:9781337091985
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter18: Six Debates Over Macroeconomic Policy
Section: Chapter Questions
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6. What change in government spending (airports, police, teachers, roads, etc.) would
reestablish full employment with price stability?
7. What change in taxes would achieve the same goal? Explain why it is different from the
change in government and is the opposite sign.
8. Should we balance the budget in this situation? And why?
Q4. Suppose that in the closed economy of Keynesia, consumption is given by C = 100 + 0.75(Y
-T). Investment I is constant at 200, government purchases G are 160, and the government’s
budget is balanced so G = T. Aggregate supply responds passively to changes in demand, so Y =
C+I+G.
a. What is the marginal propensity to consume?
b. Use algebra to find the equilibrium value of Y, the equilibrium level of income?
c. If government spending rises to 180 with no change in taxes, what will happen to the
Keynesian equilibrium level of income? What is the government-expenditure multiplier AY/AG?
d. If taxes increase to 180 with no change in government spending, what will happen to income?
What is the tax multiplier AY/AT?
e. If both government spending and taxes increase to 180, will equilibrium income change?
Explain this result intuitively.
Transcribed Image Text:6. What change in government spending (airports, police, teachers, roads, etc.) would reestablish full employment with price stability? 7. What change in taxes would achieve the same goal? Explain why it is different from the change in government and is the opposite sign. 8. Should we balance the budget in this situation? And why? Q4. Suppose that in the closed economy of Keynesia, consumption is given by C = 100 + 0.75(Y -T). Investment I is constant at 200, government purchases G are 160, and the government’s budget is balanced so G = T. Aggregate supply responds passively to changes in demand, so Y = C+I+G. a. What is the marginal propensity to consume? b. Use algebra to find the equilibrium value of Y, the equilibrium level of income? c. If government spending rises to 180 with no change in taxes, what will happen to the Keynesian equilibrium level of income? What is the government-expenditure multiplier AY/AG? d. If taxes increase to 180 with no change in government spending, what will happen to income? What is the tax multiplier AY/AT? e. If both government spending and taxes increase to 180, will equilibrium income change? Explain this result intuitively.
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