What this practice covers
These questions are drawn from past CIE 9708 papers and filtered to production possibility curves. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
Start practising Paper 1 MCQs →
What examiners see students get wrong here
These are the errors that cost marks on production possibility curves, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Every point on the PPC is allocatively efficient. Every point is productively efficient, not necessarily socially preferred.
- A point inside is unattainable. It is attainable but inefficient.
- A point outside is impossible forever. It is unattainable with current resources and technology but may become attainable after growth.
- Movement from inside to the curve is an outward shift. It is improved utilisation of existing capacity.
- Movement along the PPC is economic growth. It is reallocation between outputs with capacity unchanged.
- Outward shift always means actual output immediately rises. Capacity rises, but the economy may not use it fully.
- A straight PPC shows increasing opportunity cost. A straight PPC shows constant opportunity cost.
- A bowed-out PPC shows constant opportunity cost. It shows increasing marginal opportunity cost.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Production Possibility Curves revision notes.