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Introduction to Macroeconomics — Lecture 12: Fiscal Policy
The fiscal multiplier explained
- The fiscal multiplier measures how much GDP changes for each dollar of government spending (12:35).
- During recessions, the multiplier is higher (1.5-2.0) because there is more idle capacity in the economy (24:42).
- During expansions, the multiplier drops to around 0.5 due to crowding-out effects (45:10).
Today we'll look at how governments use fiscal policy to stabilize the economy. Let's start with the basic multiplier model.
When the government increases spending by one dollar, GDP rises by more than one dollar. This is the fiscal multiplier effect.
Does the multiplier work the same way during a recession versus an expansion?
Great question. Empirical evidence shows the multiplier is significantly larger during recessions — roughly 1.5 to 2.0, versus 0.5 in expansions.
Now let's move to the crowding-out effect. When the government borrows to finance spending, interest rates tend to rise...
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