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Edexcel IAL Economics · WEC12

Macroeconomic Performance & Policy —
WEC12 notes

Complete revision notes for Unit 2. Aggregate demand and supply, inflation, unemployment, economic growth and the policy toolkit — everything you need for WEC12.

  • 6 topics fully covered
  • Free notes across all four units
  • WEC12 exam ready

2.3.2 — Aggregate Demand

Key idea

AD = C + I + G + (X–M). Understanding what shifts each component is the key to macro analysis and policy evaluation.

  • Consumption — largest component; driven by income, confidence, interest rates.
  • Net trade — exports minus imports; moved by the exchange rate and the state of the global economy.
  1. AD shifts right
  2. Output rises
  3. Employment up
  4. Inflation risk
The exam

The WEC12 paper

1 hour 45 minutes · 80 marks · sat in January, June and October

  1. ASix multiple-choice questions6 marks
  2. BFive short-answer questions20 marks
  3. CA five-part question on data in a source booklet34 marks
  4. DOne 20-mark essay, from a choice of two20 marks

Next sittings

  • Wed 13 Jan 2027 · morning · January 2027 series
  • Wed 12 May 2027 · morning · May/June 2027 series

Start times vary by time zone. Your exams officer confirms yours.

All six topics

Everything in Unit 2, spec point by spec point

Open any topic straight in the app.

Unit overview

What you need to know for WEC12

AD/AS is your bread and butter
Almost every Unit 2 question can be answered with an AD/AS diagram. Master the shifts and you master the unit.
The multiplier effect
Any injection into the circular flow creates a larger final change in national income. k = 1/(1–MPC) is a must-know formula.
Policy trade-offs are everything
Examiners reward you for recognising that pursuing one objective (e.g. low unemployment) may conflict with another (e.g. low inflation).
Short run vs long run
Distinguish demand-side effects (short-run, shifts AD) from supply-side effects (long-run, shifts LRAS) in every answer.

Exam paper info

WEC12 at a glance

Assessment details

Exam paper
WEC12
Duration
1 hour 45 minutes
Total marks
80 marks
% of IAL
25%
Question types
24681420
Data response
Yes — Section C (34 marks)
Essay questions
Section D — choose 1 of 2

Keep going

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