Difficulty Verdict

The January 2025 series for WEC11/01: Unit 1 (Markets in action) is classified as a Medium (3/5) difficulty paper. It tested classic syllabus concepts with very clear, contextualized data from the cocoa market (Section C), though it demanded precise application of quantitative calculations and perfect diagram mechanics to secure top-tier marks.

Where the Marks are Won

High-scoring candidates dominated the quantitative and diagrammatic questions. In particular, the 4-mark calculation of Income Elasticity of Demand (YED) for UK bus journeys in Question 10 and the 6-mark supply and demand analysis of cocoa prices in Question 12(b) offered highly accessible pathways to full marks. Secure knowledge of the formulas and clear, step-by-step working were the keys to success here.

Examiner Pitfalls and Misconceptions

Several common pitfalls prevented students from achieving Level 3 or 4 marks:

  • Aviation Tax Diagram (Q7): Many candidates pivoted the supply curve rather than executing a parallel leftward shift. Because the indirect tax was a specific value (\( \text{€}0.65 \)), a parallel shift was mandatory.
  • Generic Axis Labelling: In Czechia hotel room market (Q11) and cocoa market (Q12b), marks were lost for using generic labels like 'Price' and 'Quantity' instead of 'Price per hotel room' and 'Quantity of cocoa'.
  • Rationing vs. Incentive (Q9): Students struggled to differentiate between these two functions of the price mechanism, often writing generic definitions without referring to the provided cotton-shirt and wheat context.

Revision Strategy and Prediction

For upcoming assessment series, students should prioritize mastering externalities diagrams, ensuring that Marginal Social Cost (MSC), Marginal Private Cost (MPC), and the resulting welfare loss triangle are perfectly aligned and clearly shaded. Given that minimum guaranteed prices were heavily featured in this series, maximum price controls (ceilings) and the free-rider problem associated with public goods are highly overdue for intensive data response or essay evaluations in subsequent papers.