CAIE A-Level Economics AS 2.3 Price Elasticity of Supply Questions
Practise defining, calculating and interpreting PES and explaining how time, spare capacity, stocks, factor mobility and production constraints affect firms' output response.
Syllabus
2026–2028
Course
Economics 9708
Level
AS
Exam points
calculate PES from percentage changes in quantity supplied and price using consistent base values
interpret the coefficient or curve as elastic, inelastic, unitary or a perfect case
explain short-run and long-run differences through capacity, stocks, production time and factor mobility