Production Possibilities
The PPF shows the trade-offs between two goods.
About this topic
The production possibilities frontier, or PPF, is a curve showing the maximum combinations of two goods an economy can produce with its resources and technology. Points on the curve are efficient, points inside are inefficient because resources are unemployed or misused, and points outside are unattainable for now.
The curve illustrates scarcity, choice and opportunity cost in one picture. Moving along the frontier means producing more of one good and less of the other. Usually the curve bows outward, because resources are not equally good at making both goods, so the opportunity cost rises as you specialise. A straight line would mean a constant opportunity cost.
Example: an island can make 100 fish or 50 coconuts using all its labour, or 60 fish and 30 coconuts at another point. Moving from 100 fish and 0 coconuts to 80 fish and 20 coconuts shows the price of extra coconuts is lost fish. If a storm leaves workers idle, the island falls inside the curve. Economic growth, from more resources, education or better technology, shifts the whole curve outward, so more of both goods become possible.
Common mistakes: thinking a point inside the curve is impossible rather than just inefficient, and confusing movement along the curve with a shift of it. Governments use the idea to discuss defence versus consumer goods, or healthcare versus education. Tip: label the axes with the two goods and remember growth means a shift outward.
Key ideas
- Points on the curve are efficient
- Outside is unattainable
- Bowed shape shows increasing opportunity cost
Quick check
Use cases: where Production Possibilities helps
- Homework: review the key idea behind Production Possibilities before you start a problem set.
- Exam revision: use the quick check to test whether you can recall Production Possibilities without notes.
- Visual learning: play with the interactive lab to see how Production Possibilities changes when you adjust its inputs.
- Teaching a friend: explain Production Possibilities in your own words, then compare your version with the key ideas.
Economics explains prices, jobs, budgets and government policy in daily life.
Frequently asked questions
What is Production Possibilities?
The PPF shows the trade-offs between two goods.
What will I learn in Production Possibilities?
Points on the curve are efficient. Outside is unattainable. Bowed shape shows increasing opportunity cost.
Is Production Possibilities part of Economics & Money?
Yes. It is one of 30 Economics & Money topics on LearnViz HighSchoolEdu, with 3 key ideas, a live animation and a quick check.
Does the Production Possibilities lab work on a phone or tablet?
Yes. The animation resizes to fit your screen and supports touch, so you can drag, tap and slide with your finger.
How should I study Production Possibilities?
Read the summary and key ideas first, play with the interactive lab to see the idea in motion, then answer the quick check. If you get a question wrong, go back to the key idea it tests.
Do I need an account, and is my progress saved?
No account is needed. Marking a topic as learned is saved in your own browser, so it stays on that device and is not sent to a server.