Edexcel IGCSE Economics (4EC1) · Section B: Business Economics
Specification points
- Production and productivity; the sectors of the economy.
- Specialisation and the division of labour.
- Economies and diseconomies of scale.
Production and productivity
- Production is the total output of goods and services.
- Productivity is output per factor (e.g. output per worker). Higher productivity means more output from the same resources.
Firms operate in the primary (extraction), secondary (manufacturing) or tertiary (services) sector.
Specialisation and division of labour
Specialisation — concentrating on what one does best — and the division of labour raise productivity, though work can be repetitive and create over-dependence. Specialisation requires exchange, which needs money.
Key definitions
| Term | Definition |
|---|---|
| Productivity | Output per unit of a factor of production. |
| Division of labour | Splitting production into specialised tasks. |
| Economies of scale | Falling average costs as a firm grows. |
Economies and diseconomies of scale
As a firm grows, average cost usually falls at first — economies of scale (bulk buying, cheaper finance, large efficient machinery). If it grows too large, average costs can rise — diseconomies of scale — from communication and coordination problems.
Economies of scale → lower average cost; diseconomies → higher average cost.
Worked example
A bakery installs a large automated oven. Output per worker rises (higher productivity) and bulk flour purchases lower the cost per loaf (economy of scale). If it expands into a huge multi-site business with layers of managers, communication may worsen and average costs could rise — a diseconomy of scale.
Common exam mistakes
- Confusing production (total) with productivity (per input).
- Assuming bigger is always cheaper — very large firms face diseconomies.
Exam technique
Define productivity precisely and use economies of scale to explain why larger firms often have lower average costs.
Quick revision
- Sectors: primary, secondary, tertiary.
- Production = total; productivity = per input.
- Economies of scale lower average cost; diseconomies raise it.