India is one of the largest producers of tractors in the world. S₁ and D₁ are the original supply and demand curves for Indian tractors. [Figure showing supply and demand curves for tractors. S1 and D1 intersect at P1, Q1. S2 is to the right of S1, intersecting D1 at P2, Q2.] What would cause the supply curve to move to S2?
✓ Correct Answer
The correct answer is D: rise in the productivity of workers in Indian tractor factories
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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