LEARNING OBJECTIVES
What you will be able to do
- explain scarcity, choice and opportunity cost
- classify factors of production and their rewards
- interpret production possibility curves
- analyse specialisation and division of labour
AT A GLANCE
INTRODUCTION · THE BIG IDEA
Use scarcity, choice and production possibility curves to explain every economic decision.
Economics begins with a mismatch: human wants are unlimited, but resources are finite. Individuals, firms and governments must choose, so every decision carries an opportunity cost.
Production possibility curves make those trade-offs visible and show whether resources are efficient, unemployed or growing.
SECTION 01
Scarcity, choice and opportunity cost
A free good is abundant relative to demand and has no opportunity cost, while an economic good uses scarce resources. Scarcity affects wealthy and poor economies because wants still exceed available resources.
Consumers choose how to spend income, workers choose jobs and leisure, firms choose products and governments choose between objectives such as health, defence and infrastructure.
Identifying the next best alternative
- A council can fund a library, a sports centre or a park.
- It chooses the library.
- Evidence says the sports centre was ranked second.
Answer: The opportunity cost is the benefit that would have come from the sports centre, not the cost of all rejected projects.
SECTION 02
Factors of production and mobility
Land means natural resources and receives rent; labour is human effort and receives wages; capital is man-made productive equipment and receives interest; enterprise organises the others, takes risk and receives profit.
Quantity and quality of factors change through population, migration, education, investment, technology and resource discovery or depletion. Occupational and geographical mobility affect how easily resources move between uses.
| Factor | Meaning | Reward |
|---|---|---|
| Land | natural resources | rent |
| Labour | human effort | wages |
| Capital | produced means of production | interest |
| Enterprise | risk-taking organisation | profit |
SECTION 03
Production possibility curves
A point on the curve is productively efficient, a point inside shows unemployed or inefficient resources, and a point outside is currently unattainable. Moving along the curve reallocates resources and creates opportunity cost.
An outward shift may result from more or better resources or improved technology; an inward shift may follow disaster, conflict or resource loss. A straight line shows constant opportunity cost, while a bowed curve shows increasing opportunity cost.
SECTION 04
Specialisation and division of labour
Specialisation concentrates resources on selected tasks or products. Division of labour splits production into tasks so workers can develop skill, save changeover time and use specialised machinery.
Benefits include higher productivity, lower unit cost and more output. Costs include boredom, loss of craft skill, dependence on others and vulnerability if one stage fails. At national level, specialisation enables trade but increases dependence on world demand and supply.
QUICK CHAPTER SUMMARY
The ideas to carry forward
- Scarcity makes choice unavoidable.
- Opportunity cost is the next best alternative forgone.
- PPCs show efficiency, trade-offs and productive capacity.
- Specialisation raises output but creates dependence and other risks.
QUICK REVISION CHECKLIST
Can you do each of these without your notes?
- explain scarcity, choice and opportunity cost
- classify factors of production and their rewards
- interpret production possibility curves
- analyse specialisation and division of labour