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NotesEconomicsTopic 3.6Effectiveness of fiscal policy
Back to Economics Topics
3.6.35 min read

Effectiveness of fiscal policy

IB Economics · Unit 3

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Contents

  1. 1Strengths of fiscal policy
  2. 2Constraints on fiscal policy
  3. 3Budget deficits and debt
  4. 4Exam-style question

When does fiscal policy work well?

Where fiscal policy is strong

1

It can target

Spending can go to one region or sector: rail lines, green energy, schools.

Precise
2

It works in a deep recession

When firms and households will not borrow, the government still spends.

Direct
3

Real tests

US stimulus of about $787 billion in 2009; China's 4 trillion yuan kept growth above 9%.

2008-2009

The points to remember

  • Fiscal policy works best against cyclical unemployment, with spare capacity.
  • It is strongest in a deep recession, when cheap loans alone do not tempt anyone to spend.

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Four things hold fiscal policy back.

Where fiscal policy struggles

1

Political pressure

Tax rises are unpopular; spending often rises before elections.

Politics
2

Time lags

A budget must be passed, and a new road takes years to build.

Slow
3

Sustainable debt

Deficits add to debt; interest payments take money from schools and health.

Debt
4

Wrong kind of problem

It raises AD, so it cannot fix structural unemployment or cost-push inflation.

Cause
Remember it as: Fiscal policy: precise and powerful, but slow, political and paid for with debt.

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A deficit and the debt are easy to confuse.

Two different numbers

Budget deficitGovernment debt
What it isSpending greater than revenue in one yearThe total the government owes
Example€20 billion this year€500 billion, rising to €520 billion
Kind of measureA flowA stock: the sum of past deficits

The points to remember

  • Write it like this: "A budget deficit is when government spending is greater than government revenue in a year."
  • Debt is sustainable when interest can be paid without big tax rises or cuts: watch debt as a % of GDP.

Paper 1 asked this in May 2024, as part (b) for 15 marks.

IB-style questionDiscuss[15 marks]

Using real-world examples, discuss whether fiscal policy is the best way to reduce a country's unemployment.

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How the 15 marks are given

MarksWhat your answer needs
13–15Theory fully explained, terms right all the way through, balanced evaluation, real examples fully developed to support the argument
10–12Theory explained, terms mostly right, evaluation mostly balanced, real examples developed
7–9Theory partly explained, some evaluation but one-sided, examples partly developed
4–6Theory only described, evaluation superficial, examples only named
1–3Theory stated but not relevant, no evaluation

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Text C reports that Norvane's budget deficit reached 5% of GDP in 2024.

the term budget deficit.
[2 marks]

Related Economics Topics

Continue learning with these related topics from the same unit:

3.1.1What is GDP and how is it measured?3.1.2Real vs nominal GDP and comparisons3.1.3GDP and well-being3.1.4The business cycle
View all Economics topics
Improve your exam techniqueCommand terms, paper structure, and mark-scheme tips for Economics
Previous3.6.2Expansionary and contractionary fiscal policyNextMarket-based supply-side policies3.7.1

16 practice questions on Effectiveness of fiscal policy

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