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Government Fiscal Policy

How governments use spending and taxes to manage the economy.

📊 Year 9 📈 Macroeconomics ⭐ ★★★

Fiscal Policy: The Government's Economic Lever

When a recession hits, the government faces a choice: cut spending to balance the books (austerity), or increase spending and cut taxes to stimulate the economy (expansion). This choice — how to use the government's budget to manage the macroeconomy — is the essence of fiscal policy.

🚿 The Bathtub Economy: Think of the economy as a bathtub. Water flowing in = aggregate demand (consumer spending, investment, exports). Water draining out = savings, taxes, imports. In a recession, the tub is emptying. Fiscal policy is the government turning up the tap (more spending) or reducing the drain (tax cuts) to refill the tub.

Policy Type	Tools	Effect	Used When
Expansionary (Loose)	↑ Spending, ↓ Taxes	AD rises, growth ↑, unemployment ↓	Recession
Contractionary (Tight)	↓ Spending, ↑ Taxes	AD falls, inflation ↓	Overheating economy

The Multiplier Effect:
An initial £1bn government injection does not create just £1bn of extra GDP.
Recipients spend a fraction (MPC) of their income → creates further income → spent again.
Multiplier = 1 ÷ (1 − MPC). If MPC = 0.8, multiplier = 1 ÷ 0.2 = 5
→ £1bn injection → £5bn increase in national income.

💡 Trade-offs and Limitations:
• Expansionary policy risks inflation if economy near full capacity.
• Higher government spending may "crowd out" private investment (rising interest rates).
• Time lags: fiscal policy changes take months to legislate and longer to take effect.
• Budget deficits add to national debt — future taxpayers bear the burden.

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📊 Interactive Economic Diagram

Policy

💡 How to read economic diagrams: Always label axes (Price on Y-axis, Quantity on X-axis for most diagrams). Shifts represent changes in non-price factors; movements along a curve represent price changes. Equilibrium is where curves intersect.

📈 Fiscal Multiplier Calculator

Marginal Propensity to Consume (MPC) Initial Government Spending (£bn)

Enter MPC (0–0.99) and initial spending.

💡 Exam Tip: Show all working in economics calculations. Use the correct formula, substitute values clearly, state units, and interpret your result in economic terms.