AQA A-Level Economics · Revision notes

4.1.4.2 Specialisation, Division of Labour and Exchange

Specialisation is the reason modern economies are so productive. Instead of each person or country trying to produce everything it needs, each concentrates on a narrow range of tasks and trades for the rest. This topic covers the benefits of specialisation and the division of labour, and why specialisation needs an efficient means of exchange, such as money.

Specialisation and the division of labour

Specialisation is when individuals, firms, regions or countries concentrate on producing a limited range of goods or services.

Key distinction: The division of labour is specialisation within a production process: breaking the production of a good into separate tasks, each carried out by a different worker.

Adam Smith and the pin factory In The Wealth of Nations (1776), Adam Smith described a pin factory. One worker making whole pins alone could produce very few in a day. When pin-making was divided into around eighteen separate operations, a small team of ten workers could produce tens of thousands of pins a day.

Smith gave three reasons for the gain:

1. Each worker becomes more skilled at a single task through repetition.
2. Time is saved that would otherwise be lost moving between tasks.
3. Simple, repetitive tasks are easier to mechanise, encouraging the invention of machinery.

Advantages and disadvantages in production

Advantages

• Higher productivity. Output per worker rises, lowering costs per unit.
• Skills develop faster. Workers become expert at their task.
• Training is quicker and cheaper. Workers learn one task, not many.
• Use of machinery. Breaking production into simple tasks makes automation easier.
• Workers can be matched to tasks that suit their abilities.

Disadvantages

• Monotony. Repetitive work can reduce motivation, raise absence and reduce quality.
• Interdependence. If one stage of production stops, the whole process stops.
• Loss of craft skills. Workers may struggle to find work if their narrow task disappears, increasing structural unemployment.
• Lack of variety in standardised products.

Specialising to trade

Specialisation applies to countries as well as workers. A country that concentrates on producing the goods and services it is best at, and trades for the rest, can consume more than if it tried to be self-sufficient.

Advantages

• Higher output and living standards from using resources where they are most productive.
• Economies of scale from producing for larger markets.
• Wider choice of goods for consumers.
• Lower prices through competition and lower costs.

Disadvantages

• Over-dependence. A country relying on a few exports is vulnerable if world demand or prices for them fall.
• Vulnerability of supply. A country relying on imports of essentials such as food or energy is exposed to supply disruption.
• Structural unemployment in industries that cannot compete with imports.
• Environmental costs of transporting goods long distances.

The functions of money

Key idea: Specialisation only works if people can exchange what they produce. Without money, exchange depends on barter, which requires a double coincidence of wants: each party must have what the other wants, at the same time. Money solves this problem.

Money has four functions:

1. A medium of exchange. Money is accepted in payment for goods and services, removing the need for barter.
2. A measure of value (unit of account). Money provides a common unit in which prices are expressed, so the value of very different goods can be compared.
3. A store of value. Money can be saved and used in the future, so income does not have to be spent immediately. Inflation erodes this function.
4. A method of deferred payment. Money allows debts to be agreed now and settled later, making borrowing, lending and credit possible.

Without money, the high level of specialisation in a modern economy would be impossible.

Key terms

Common mistakes

• Treating specialisation and the division of labour as identical. The division of labour is specialisation within a production process; specialisation is the wider idea.
• Listing advantages without saying why output rises. The link is productivity: more output from the same inputs.
• Ignoring the downsides of specialising to trade. Dependence on a narrow range of exports or on imported essentials carries real risks.
• Mixing up the functions of money. A store of value is about the future; a medium of exchange is about the transaction now.

How this has been examined

In the AQA papers indexed on this site, this topic has appeared in one format:

• 1-mark multiple choice — asked once (2020)

Where this goes next

Productivity, the link between specialisation and higher output, is covered in 4.1.4.1 Production and productivity, and the output gains from specialisation can be shown in 4.1.1.5 Production possibility diagrams. Specialisation between countries is developed into comparative advantage in 4.2.6.2 Trade. Within firms, the gains from scale reappear in 4.1.4.5 Economies and diseconomies of scale, and the role of exchange in allocating resources in 4.1.8.1 How markets and prices allocate resources.