Unit 3 · Macroeconomics · Topic 3.6

IB Economics — Demand management: fiscal policy

Taxation/spending, multipliers, budget balance, and limitations (debt, crowding out).

Key concepts in Demand management: fiscal policy

Key Idea: Topic 3.6 explains how governments use spending and taxation to manage AD, the multiplier effect, and the constraints of budget deficits and national debt.

✅ Core definitions

📊 Types of taxes

🔁 The multiplier effect

k = \\frac{1}{1 - MPC} = \\frac{1}{MPS + MPT + MPM}

Multiplier — higher MPC = bigger multiplier

In practice, multipliers are typically 1–2, much smaller than formula-predicted values. State this in evaluation.

⚖️ Evaluation and constraints

Distinguish: discretionary fiscal policy (deliberate changes) vs automatic stabilisers (built-in mechanisms that activate without new legislation).

What you'll learn in Topic 3.6

3.6.1 Government spending and taxation
3.6.2 The multiplier effect
3.6.3 Budget balance, debt, and limitations

Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 3.6 Demand management: fiscal policy

3.6.1

Government spending and taxation

Notes

3.6.2

The multiplier effect

Notes

3.6.3

Budget balance, debt, and limitations

Notes

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Topic 3.6 Demand management: fiscal policy forms a core part of Unit 3: Macroeconomics in IB Economics. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

Frequently asked questions

What does Topic 3.6 Demand management: fiscal policy cover in IB Economics?

Topic 3.6 covers demand management: fiscal policy as part of the IB Economics syllabus. Students learn key economic concepts, models, and real-world applications that are assessed in Paper 1, Paper 2, and Paper 3 exams.

How should I revise Demand management: fiscal policy for IB Economics exams?

Start by reading the micro-topic notes to understand each concept, then use flashcards to memorise key terms and diagrams. Practise drawing and explaining economic models, and work through past paper questions to apply your knowledge under exam conditions.

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Unit 3 · Macroeconomics · Topic 3.6

IB Economics — Demand management: fiscal policy

Taxation/spending, multipliers, budget balance, and limitations (debt, crowding out).

Exam technique guide Practice questions

Key concepts in Demand management: fiscal policy

Key Idea: Topic 3.6 explains how governments use spending and taxation to manage AD, the multiplier effect, and the constraints of budget deficits and national debt.

✅ Core definitions

📊 Types of taxes

🔁 The multiplier effect

k = \\frac{1}{1 - MPC} = \\frac{1}{MPS + MPT + MPM}

Multiplier — higher MPC = bigger multiplier

In practice, multipliers are typically 1–2, much smaller than formula-predicted values. State this in evaluation.

⚖️ Evaluation and constraints

Distinguish: discretionary fiscal policy (deliberate changes) vs automatic stabilisers (built-in mechanisms that activate without new legislation).

What you'll learn in Topic 3.6

3.6.1 Government spending and taxation
3.6.2 The multiplier effect
3.6.3 Budget balance, debt, and limitations

Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.