A Level Economics: The Complete Inflation Guide for CAIE 9708 (AS and A2)
Sir Zarak Mushtaq
20 June 2026 · 10 min read
Inflation is tested in every CAIE Economics 9708 paper — sometimes directly, sometimes as part of broader macroeconomic analysis. At AS Level, you need solid AD/AS analysis. At A2 Level, examiners expect Phillips Curve integration, policy evaluation, and real-world application.
This is the inflation guide I give my A Level students before every mock exam.
AS Level Inflation Requirements (Papers 1 and 2)
Paper 1 (MCQ) — What they test:
• Distinguishing demand-pull from cost-push inflation • Identifying the correct AD/AS shift for a given scenario • Effects of inflation on different economic agents • Policy instruments and their targets • Calculating inflation rates from CPI data
Paper 2 (Structured) — What they test:
• 2-mark definitions of inflation, deflation, disinflation • 4-mark questions on causes or effects • 8-mark analysis requiring AD/AS diagrams with written explanation • Data response questions using real inflation statistics
AS Level AD/AS diagram for inflation:
For demand-pull: AD shifts right along upward-sloping SRAS. Price level rises from P1 to P2. Real output rises from Y1 to Y2.
For cost-push: SRAS shifts left. Price level rises from P1 to P2. Real output falls from Y1 to Y2. This is stagflation — and it is the diagram examiners love most.
A2 Level Inflation Requirements (Papers 3 and 4)
Paper 3 (MCQ) — Additional A2 concepts:
• Phillips Curve (short-run trade-off between inflation and unemployment) • Expectations-augmented Phillips Curve (long-run vertical at NAIRU) • Monetarist vs Keynesian views on inflation causation • Quantity theory of money (MV = PY) • Inflation targeting and central bank independence
Paper 4 (Essays) — What distinguishes A* answers:
• Multi-causal analysis (inflation rarely has a single cause) • Time period analysis (short-run vs long-run effects of policy) • International comparison (why inflation differs across countries) • Evaluation of policy effectiveness with specific conditions • Real-world evidence with data
The Phillips Curve: Essential for A2
The short-run Phillips Curve shows an inverse relationship between inflation and unemployment. Lower unemployment → tighter labour market → wage pressure → higher inflation.
The long-run Phillips Curve is vertical at the NAIRU (Non-Accelerating Inflation Rate of Unemployment). In the long run, expansionary policy cannot reduce unemployment below NAIRU — it only causes higher inflation (adaptive expectations).
Exam application: "Discuss whether reducing unemployment should be the primary macroeconomic objective."
Analysis: In the short run, expansionary policy reduces unemployment but increases inflation (movement along SRPC). In the long run, unemployment returns to NAIRU but at a higher inflation rate (SRPC shifts up). Evaluation: depends on current unemployment relative to NAIRU, inflation expectations, and whether the economy is experiencing cost-push vs demand-pull inflation.
Essay Structures for Inflation Questions
"Analyse the causes of inflation in a developing country" (15 marks):
Paragraph 1: Define inflation and its measurement (CPI). State that developing countries face both demand-pull and cost-push pressures.
Paragraph 2: Demand-pull analysis — fiscal deficits financed by money creation, rapid population growth increasing demand for food and housing, rising middle-class consumption. AD/AS diagram.
Paragraph 3: Cost-push analysis — import dependence for energy and machinery, currency depreciation, agricultural supply shocks (floods, droughts), infrastructure bottlenecks raising production costs. AD/AS diagram.
Paragraph 4: Built-in inflation — informal sector wage dynamics, index-linked government salaries, inflation expectations becoming entrenched.
"Evaluate the effectiveness of monetary policy in controlling inflation" (25 marks):
Analysis: Raise interest rates → reduce C, I, AD → lower demand-pull inflation. Diagram. Evidence (Bank of England 2022–2024, SBP 2023).
Evaluation: Ineffective against cost-push inflation (2022 energy shock). Time lags (12–18 months). May cause recession (UK 2023). Conflict with exchange rate objectives. Limited effectiveness if inflation expectations are unanchored. Alternative: supply-side policies for cost-push.
Conclusion: Monetary policy is effective against demand-pull inflation when expectations are anchored, but insufficient alone for cost-push shocks — coordinated fiscal and supply-side policy needed.
Pakistan Inflation Data for A Level Essays
Year — CPI Inflation — Key Driver · 2021 — 12.3% — Post-COVID recovery, rupee weakness · 2022 — 25.0% — Flood damage, global energy prices · 2023 — 29.2% — IMF reforms, energy tariff hikes · 2024 — 23.4% — Base effects, some moderation · 2025 — ~15-18% — Continued fiscal pressures
Use this table in data response questions. Always link data to theory — "The 2022 acceleration from 12.3% to 25.0% was primarily cost-push, driven by global energy prices and domestic flood-related food supply disruption, as shown by the leftward shift of SRAS."
Top Inflation Past Paper Topics (9708)
Based on frequency analysis of past papers 2015–2025:
1. Causes of inflation (demand-pull vs cost-push) — appears almost every session 2. Effects of inflation on the economy — high frequency in Paper 2 3. Effectiveness of monetary policy — A2 Level essay favourite 4. Relationship between inflation and unemployment (Phillips Curve) — A2 staple 5. Inflation in developing countries — increasingly common
