Study Notes
The Production Possibility Curve (PPC) represents the combinations of the maximum amount of two goods that can be produced in an economy given its resources and technology when there is full employment and efficiency.
- Production Possibility Curve (PPC) — a graph showing the maximum combinations of two goods that can be produced with available resources and technology. Example: A PPC showing textbooks and computers.
- Opportunity Cost — the cost of forgoing the next best alternative when making a choice. Example: Giving up 4 computers to produce more textbooks.
- Efficiency — using resources in such a way as to maximize the production of goods and services. Example: Operating on the PPC curve.
- Actual Growth — an increase in the production of goods and services in an economy. Example: Moving closer to the PPC.
- Potential Growth — an increase in the economy's ability to produce goods and services. Example: A rightward shift of the PPC.
- Constant Opportunity Cost — when the opportunity cost remains the same as production increases. Example: A straight-line PPC.
- Increasing Opportunity Cost — when the opportunity cost increases as production increases. Example: A concave PPC.
Exam Tips
Key Definitions to Remember
- Production Possibility Curve (PPC)
- Opportunity Cost
- Efficiency
- Actual Growth
- Potential Growth
Common Confusions
- Confusing actual growth with potential growth
- Misunderstanding constant vs increasing opportunity cost
Typical Exam Questions
- What is the PPC? The PPC is a graph showing the maximum combinations of two goods that can be produced with available resources and technology.
- How does a PPC illustrate opportunity cost? It shows the trade-offs between two goods, indicating what must be given up to produce more of one good.
- What causes a shift in the PPC? Changes in resources, technology, or factors of production.
What Examiners Usually Test
- Understanding of PPC assumptions
- Ability to illustrate and explain opportunity cost
- Differences between actual and potential growth