Economics (AS & A Level) · May / June 2026 · Paper 14 · Question 4

YX is an economy's production possibility curve (PPC). The equation of the curve is q_Y = 1000 - 2q_X. [graph: output of good Y (q_Y) vs output of good X (q_X), with Y at 1000 and X at 500] What is the opportunity cost of producing one extra unit of good X?

1. A1/2 unit of good Y
2. B2 units of good Y
3. C500 units of good Y
4. D1000 units of good Y

As printed in the paper