OxfordAQA International GCSE Economics: Choice, factors, markets, specialisation (9214)

This guide covers sections 3.1.1 (Economic foundations) and 3.1.2 (Resource allocation) of the OxfordAQA International GCSE Economics (9214) specification, for exams from May/June 2025 onwards. Every number, country and firm below is invented for illustration.

Related pages: revision notes, practice questions, the wider How markets work guide, the course hub, the printable checklist and the free diagnostics.

What you must be able to do

Reference	Outcome
3.1.1.1	Needs and wants, central purpose, key decisions, economic groups and their interactions
3.1.1.2	Nature of an economic resource; land, labour, capital, enterprise and rewards
3.1.1.3	Basic economic problem; weighing costs and benefits; opportunity cost
3.1.2.1	Markets, allocation of scarce resources, factor and product markets
3.1.2.2	Primary, secondary and tertiary sectors; goods and services
3.1.2.3	Specialisation, division of labour and exchange: costs and benefits

3.1.1.1 Economic activity

A need is something required to survive or function at a basic level, such as food, water, shelter and clothing. A want is something people would enjoy having but can manage without, such as a new phone or holiday. The line moves over time and place. Internet access was a want for most households once; many now treat it as close to a need because school, work and public services depend on it. The same item can be a need for one person and a want for another.

The central purpose of economic activity is production: making the goods and services that meet people’s needs and wants.

Every economy must make three key decisions:

• What to produce: the choice of products and the quantity of each.
• How to produce: which resources and methods, for example labour-intensive or capital-intensive.
• Who is to benefit: how the output is shared out among people.

The three main economic groups are consumers, producers and government. They interact all the time:

• Consumers supply labour to producers and receive wages. They spend income on products and pay taxes.
• Producers hire labour, make products and pay taxes. They respond to what consumers buy.
• Government taxes consumers and producers, then provides services, pays benefits and sets rules.

Worked example: how to produce

A crop firm in Country A can use a labour-intensive method (12 workers at 50 currency units a day, making 300 units) or a capital-intensive method (2 workers at 50 a day plus machine costs of 400 a day, making 400 units).

Labour-intensive:  12 x 50 = 600 a day; 600 / 300 = 2.00 per unit
Capital-intensive: (2 x 50) + 400 = 500 a day; 500 / 400 = 1.25 per unit

The firm answers “how to produce” by choosing the capital-intensive method. Evaluation: this assumes the machine can be used every day and that the firm can afford it. If workers are very cheap or the machine often breaks down, the answer may change.

3.1.1.2 The factors of production

An economic resource is an input used to produce goods and services. It is scarce, because supply is limited, and it has alternative uses. That is why using it carries an opportunity cost.

Factor	Meaning	Reward
Land	All natural resources: soil, minerals, forests, water, fish	Rent
Labour	Human effort, physical and mental	Wages or salary
Capital	Equipment people have made to help produce other things: machines, tools, buildings, vehicles	Interest
Enterprise	Directing the other factors and bearing the risk of production	Profit (or loss)

Capital here means capital goods, not money. Profit is what remains after paying for the other factors.

Worked example: rewards

A small bakery in Country A has monthly revenue of 5,400 currency units. It pays rent of 600 for the shop (land), wages of 2,000 (labour), loan interest of 300 (the lender’s capital) and 1,100 for ingredients.

Total costs = 600 + 2,000 + 300 + 1,100 = 4,000
Profit      = 5,400 - 4,000 = 1,400

Rent, wages and interest go to the owners of land, labour and capital. The 1,400 profit rewards the owner’s enterprise. If revenue fell to 3,800, the owner would make a loss of 200, so enterprise can lose as well as gain.

3.1.1.3 Making choices

The basic economic problem is scarcity. Wants are unlimited, but resources are limited. So individuals, firms and governments must choose, and choosing one thing means giving up another.

Opportunity cost is what you lose by choosing: the benefit of the best alternative you did not take. It is that single option, not the total of everything forgone.

Worked example: opportunity cost

Amina has four free hours. She can do paid work at 9 currency units an hour, play sport with friends, or revise. She ranks paid work second after revision.

Opportunity cost of revising = next best alternative = paid work
                             = 4 x 9 = 36 currency units

The cost is 36 units, not 36 plus the sport.

Worked example: choices for a farmer

A farmer has 10 hectares. One hectare grows 4 tonnes of wheat or 6 tonnes of maize.

Hectares of maize	Hectares of wheat	Maize (tonnes)	Wheat (tonnes)
0	10	0	40
2	8	12	32
4	6	24	24
6	4	36	16
8	2	48	8
10	0	60	0

Moving one hectare from wheat to maize gains 6 tonnes of maize and loses 4 of wheat. So 1 tonne of maize costs 4/6 = 0.67 tonnes of wheat, and 1 tonne of wheat costs 6/4 = 1.5 tonnes of maize.

Weighing costs and benefits

Governments and firms compare the benefits and costs of each option. Country A has a budget of 600 million. A hospital costs 600 million and is expected to bring benefits worth 900 million. A school and road scheme costs 600 million with benefits worth 840 million.

Hospital net benefit:        900 - 600 = 300 million
School and roads net benefit: 840 - 600 = 240 million

On these figures the hospital wins, and the opportunity cost of choosing it is the school and roads. Evaluation: forecasts are uncertain, some benefits (health, safety) are hard to value, and the gains may fall on different groups of people.

3.1.2.1 Markets and the allocation of resources

A market is any arrangement in which buyers and sellers interact to establish a price. It can be a street stall or an online platform. Because resources are scarce, markets allocate them through prices. If the price of tomatoes rises from 2 to 3 (up 50%), producers see higher profit and move land and labour into tomatoes. Buyers who value them less leave the market. Price both signals scarcity and rations limited supply.

• Product (goods and services) markets: firms sell products to consumers, for example bread.
• Factor markets: firms buy land, labour, capital and enterprise services, for example hiring a baker. Households sell their labour here and receive wages.

In the product market the consumer is the buyer. In the factor market the firm is the buyer and the household is the seller.

3.1.2.2 Economic sectors, goods and services

• Primary sector: extracts natural resources (farming, fishing, mining, forestry).
• Secondary sector: manufactures, processes and builds.
• Tertiary sector: provides services such as retail, health, education, banking and transport.

A good is a physical product that can be touched and stored, like a bicycle. A service is intangible and is usually used as it is provided, like a haircut. Many products mix both, so say which element dominates.

Worked example: changing sector sizes

Country B shares by employment:

	Year 1 (12 million jobs)	Year 40 (15 million jobs)
Primary	6.0m (50%)	1.5m (10%)
Secondary	3.0m (25%)	3.6m (24%)
Tertiary	3.0m (25%)	9.9m (66%)

Tertiary share: 9.9 / 15 x 100 = 66%; change = 66 - 25 = +41 percentage points
Primary jobs: (1.5 - 6.0) / 6.0 x 100 = -75%

Say “percentage points” for a change in a share and “per cent” for a change in a number. Possible reasons for a shift towards services: rising incomes raise demand for services, machinery needs fewer farm workers, and resources are used up or imported. Patterns differ between countries.

3.1.2.3 Specialisation, division of labour and exchange

Specialisation means concentrating on a limited range of tasks, products or services. It occurs at several levels:

• Individuals train for one occupation.
• Firms produce a narrow product range.
• Regions concentrate on certain industries.
• Countries focus on a narrow range of goods and services.

Division of labour is a form of specialisation: production is split into separate tasks and each worker does one. Individuals and producers specialise because it raises output per person. Specialists then need exchange, because they make far more of one thing than they need, and they trade it using money for the other goods they want. Exchange benefits both sides: each gets a wider range of products than it could make alone. Its costs include dependence on other producers and the time and transport needed to trade.

Worked example: division of labour

A workshop with five workers makes wooden stools. Each worker alone does five tasks in 160 minutes per stool, including changing tools, so produces 480 / 160 = 3 stools in an 8-hour day. With one task each, the line runs at the pace of its slowest task, 20 minutes, giving 480 / 20 = 24 stools a day. Wages cost 400 a day.

Alone:    5 x 3 = 15 stools; output per worker 3; cost per stool 400 / 15 = 26.67
Divided:  24 stools; output per worker 4.8 (up 60%); cost per stool 400 / 24 = 16.67

Costs and benefits

	Benefits	Costs
Worker	Faster, more skilled, often higher pay	Boredom, loss of other skills, redundancy risk
Firm	Higher output, lower unit costs, quicker training	A stoppage at one task halts the line; staff turnover; less flexibility
Country	Higher output, exports pay for imports, larger markets	Reliance on few products, exposure to price falls and trade disruption

Worked example: a narrow range for a country

Country C earns 500 million from exports, 400 million (80%) from one crop. The crop’s price falls 25% with volumes unchanged.

New crop earnings = 400 x 0.75 = 300; other exports 100
New total = 400; fall = (500 - 400) / 500 = 20%

A 25% price fall cuts total export earnings by 20%. A country with a wide range of exports would lose far less. Evaluation: specialisation can still be sensible if the country is far better at the crop than at alternatives, and it can use the earnings to build other industries.

Common errors

• Writing that opportunity cost is “everything given up”. Only the best alternative counts.
• Treating money as a factor of production. Money is not capital in this sense.
• Treating profit as the reward to every factor. It rewards enterprise only.
• Mixing up “percentage” and “percentage point”.
• Describing division of labour and specialisation as the same thing without noting that one is a subset.

Official syllabus

OxfordAQA International GCSE Economics (9214), version 1.0, for exams from May/June 2025 onwards, published by OxfordAQA, sections 3.1.1 and 3.1.2.