Examiner Verdict & Paper Difficulty
The May/June 2025 series presents a balanced but highly rigorous suite of papers for both AS and A-Level candidates. Papers 13 and 33 (Multiple Choice) tested precise microeconomic mechanics and calculation-heavy macroeconomic metrics, while Papers 23 and 43 demanded deep evaluation of government policies, firm behaviors, and trade integration. The overall difficulty is elevated by the high-stakes evaluative essays and contextual data responses (P23 Q1 and P43 Q1) that require candidates to apply economic theory to volatile real-world settings, such as agricultural price shocks of onions in the Philippines and the efficacy of government intervention in 'green energy' markets.
Where the Marks are Won or Lost
High-scoring candidates secured top marks by executing precise, multi-stage diagrams and integrating them directly into their written arguments. In Paper 23, the production possibility curve (PPC) diagram for the onion-growing farmer required clear starting points from a zero-production axis to accurately illustrate changing opportunity costs. In Paper 43, the indifference curve essay (Q2) demanded a flawless diagram showing the income and substitution effects of a price change. Crucially, the examiner report notes that failing to provide any diagram for indifference curve analysis immediately caps the maximum mark at Level 2 (8 out of 14 marks) for AO1/AO2, which is a major pitfall. Similarly, in the stagflation essay (Q4), a missing aggregate demand/aggregate supply diagram restricted candidates to a maximum of 8 marks for analysis.
Common Pitfalls & Misconceptions
Examiners highlighted several persistent issues. In the AS data response, many candidates struggled with the distinction between a movement along a PPC and a shift, particularly when resource reallocation occurs in the short run. Additionally, in Paper 43 Q5, some candidates treated 'free trade area' and 'customs union' as interchangeable terms, completely overlooking the fundamental requirement of a common external tariff for the latter. In macroeconomic essays, the inability to clearly distinguish between demand-side and supply-side factors during stagflation led to contradictory policy recommendations.
Strategic Revision & Predictions
For upcoming series, students must prioritize high-yield topics that consistently bridge microeconomic theory and government policy. Master the distinction between normal, inferior, and Giffen goods using both income and substitution effect shifts. Furthermore, practice evaluating the real-world trade-offs of horizontal and vertical integration on consumer surplus and productive efficiency. A critical strategy is to ensure every essay response is balanced; a one-sided argument in any 12-mark or 20-mark question will receive zero marks for evaluation (AO3) under the Cambridge rubrics.