Crowding Out and the Keynesian Multiplier
Macroeconomics
This diagram illustrates how expansionary fiscal policy can be offset by the crowding out effect, reducing the full impact of the Keynesian multiplier.
Curves and Elements
ad1
AD1: Initial aggregate demand before fiscal stimulus.
ad2
AD2: Increased AD due to government spending and the Keynesian multiplier.
ad3
AD3: Final aggregate demand after accounting for crowding out.
keynesian multiplier
Keynesian Multiplier: The potential increase in output due to increased government spending.
crowding out
Crowding Out: Reduction in private sector activity due to increased government borrowing and higher interest rates.
Expansionary fiscal policy, such as increased government spending, initially shifts aggregate demand from AD1 to AD2.
Due to the Keynesian multiplier, the increase in government spending can lead to a proportionally larger increase in aggregate demand.
However, the crowding out effect occurs when increased government borrowing raises interest rates, reducing private investment and consumption.
This leads to a partial leftward shift in AD from AD2 to AD3, diminishing the full potential impact of the multiplier.
The diagram captures this dynamic by showing both the theoretical multiplier effect and the offsetting impact of crowding out.
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