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

These notes condense 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. For full explanations read the study guide, then test yourself with the practice questions. Other useful pages: the course hub, the checklist, the markets revision notes and the free diagnostics. All figures here are invented.

Key definitions

Term	Definition
Need	Something required to survive or function at a basic level
Want	Something people would enjoy having but can manage without
Central purpose	Production, to meet needs and wants
Economic resource	A scarce input with alternative uses, used to produce goods and services
Scarcity	Not enough resources to meet every want: the basic economic problem
Opportunity cost	Benefit of the best alternative forgone
Market	Buyers and sellers interacting to establish a price
Specialisation	Concentrating on a limited range of tasks, products or services
Division of labour	Splitting production into separate tasks, each done by one worker
Exchange	Trading what you make for what you need, usually using money

3.1.1.1 Economic activity

• Needs and wants change over time and between people. A want can become a need when daily life depends on it.
• Three key decisions: what to produce, how to produce, who benefits.
• Three groups: consumers, producers, government.

Group	Gives	Receives
Consumers	Labour, spending, taxes	Wages, goods and services, public services
Producers	Wages, goods and services, taxes	Labour, revenue
Government	Public services, benefits, rules	Taxes

Small worked reminder: how to produce

Method X costs 900 a day for 450 units. Method Y costs 1,260 a day for 840 units.

X: 900 / 450 = 2.00 per unit    Y: 1,260 / 840 = 1.50 per unit

Choose the method with the lower cost per unit, then check what could make the answer change (breakdowns, extra training, uncertain demand).

3.1.1.2 Factors of production

Factor	Examples	Reward
Land	Farmland, oil, timber, fishing waters	Rent
Labour	Teacher, driver, welder	Wages
Capital	Oven, delivery van, factory	Interest
Enterprise	Founder who organises and risks funds	Profit

• Capital means equipment made to produce other things, not money.
• Profit = revenue minus total costs. A negative figure is a loss.
• A resource is “economic” because it is scarce and has alternative uses.

Small worked reminder: profit

A stall has revenue of 3,000 and costs of 2,450 (wages, rent, interest, stock). Profit = 3,000 - 2,450 = 550. This is the reward to enterprise.

3.1.1.3 Making choices

Method in steps:

1. State the scarcity: limited resources, more than one use.
2. List the realistic options.
3. Put a value on the costs and benefits of each.
4. Choose the highest net benefit.
5. Name the opportunity cost: the best option forgone, not all of them.

Small worked reminder: opportunity cost

A carpenter makes 2 desks or 6 chairs a day.

1 desk costs 6 / 2 = 3 chairs     1 chair costs 2 / 6 = 0.33 desks

Another one: a customer can spend 5,000 on a car or 3,000 on a trip but not both. Choosing the car has an opportunity cost of the trip, worth 3,000 to them, not 8,000.

3.1.2.1 Markets and allocation

• A market works through price. Rising price signals scarcity, attracts producers and rations buyers.
• Product market: households buy goods and services from firms.
• Factor market: firms buy land, labour, capital and enterprise; households sell their labour and receive wages.

	Product market	Factor market
Buyers	Consumers	Firms
Sellers	Firms	Households (labour) and owners of land and capital
Price paid	Price of the product	Wage, rent or interest

Allocation chain: demand for a product rises, price rises, profit rises, firms hire more factors, more of the scarce resources move to that product.

3.1.2.2 Sectors, goods and services

Sector	Activity	Examples
Primary	Extracting natural resources	Mining, fishing, farming
Secondary	Manufacturing, processing, construction	Furniture factory, builders
Tertiary	Services	Retail, banking, health

• Good: tangible, can be stored and owned. Service: intangible, usually used as it is provided.
• Sector sizes change over time. Measure by share of employment or share of output. Typical reasons for a move towards services: higher incomes, mechanisation of farming, resource depletion.

Small worked reminder: sector shares

Year 1: 200 jobs, 60 primary. Year 2: 250 jobs, 50 primary.

Year 1 share = 60 / 200 = 30%    Year 2 share = 50 / 250 = 20%
Change = 20 - 30 = -10 percentage points

3.1.2.3 Specialisation, division of labour and exchange

• Levels: individual, firm, region, country. Division of labour is specialisation by task within a firm.
• Why specialise: more output per worker, more skill and speed, better use of equipment.
• Exchange: specialists trade surplus for what they need.

	Benefits	Costs
Worker	Skill, speed, pay	Boredom, narrow skills, redundancy risk
Firm	Output, unit cost, training	Line stops if one task fails, turnover
Country	Output, exports, imports	Few products, price falls, trade disruption

Small worked reminder: productivity and unit cost

Eight workers make 120 units a day. After task splitting they make 168. Wages cost 1,260.

Output per worker: 120 / 8 = 15 -> 168 / 8 = 21; rise = 6 / 15 = 40%
Unit cost: 1,260 / 120 = 10.50 -> 1,260 / 168 = 7.50

Small worked reminder: a country’s narrow range

Exports total 300 million, 210 million (70%) from one product. Its price falls 20%.

Product earnings = 210 x 0.8 = 168; total = 168 + 90 = 258
Fall = 42 / 300 = 14%

Must-know distinction: a 20% fall in one price caused only a 14% fall in total earnings, because 30% of exports were not affected. The more concentrated the exports, the larger the fall.

Building analysis and evaluation

Analysis is a chain: each link causes the next. Evaluation weighs the chain and reaches a judgement.

• Opportunity cost chain: resources are scarce, so using them for one purpose means they cannot be used for the next best purpose, which is the cost.
• Price chain: demand rises, price rises, profit rises, firms hire more factors, output rises.
• Specialisation chain: tasks are narrowed, repetition builds speed, output per worker rises, unit cost falls.
• Evaluation prompts: how large is the effect, how long does it last, who gains and who loses, how reliable are the figures, what would change the answer?

Example for a country: “Specialising in one crop lets Country C sell more abroad and buy goods it cannot grow (chain). It is only worth the risk if the crop’s price is stable and other industries can grow later (evaluation), so the decision depends on how diversified the economy can become.”

Use “because”, “so” and “this means” to show each link. A conclusion should answer the question set, not repeat your points.

Must-know distinctions

• Need versus want: survival versus desire, and both can change.
• Opportunity cost versus total cost: the best option forgone, not all options.
• Capital versus money: man-made productive goods versus a means of payment.
• Factor market versus product market: who buys and what is bought.
• Percentage versus percentage point.
• Specialisation versus division of labour: the second is task splitting by workers.

Quick self-test

1. Give one example of a want that has become a need for many people.
2. Name the three key economic decisions.
3. State the reward to each of land, labour, capital and enterprise.
4. A student can earn 12 an hour or play sport for three hours. If work is the next best choice, what is the opportunity cost of three hours of sport?
5. A hectare gives either 5 tonnes of rice or 8 tonnes of beans. How much rice is forgone to gain 1 tonne of beans?
6. Which market is a worker hired in?
7. Primary jobs go from 40% to 25% of all jobs. State the change.
8. Define a service.
9. Give one cost of the division of labour to a firm.
10. Export earnings are 600, of which 480 comes from one good. What is the share?

Answers

1. Internet access or a mobile phone for work or study (other sensible examples accepted).
2. What, how and for whom (who is to benefit).
3. Rent, wages, interest, profit.
4. 3 x 12 = 36.
5. 5 / 8 = 0.625 tonnes of rice.
6. The factor market (labour market).
7. A fall of 15 percentage points.
8. An intangible product, usually used as it is provided, such as a haircut.
9. If one worker’s task stops the whole line stops, or staff turnover rises from boredom.
10. 480 / 600 = 80%.

Where marks are usually lost

• Describing opportunity cost as the cost of “all the alternatives”.
• Answering a “how to produce” question with “what to produce”.
• Saying capital means money.
• Naming profit as the reward to labour or to all costs.
• Confusing the factor market with the product market.
• Writing percentages when the question asks for percentage points.
• Giving benefits of division of labour without separating worker and firm.
• Stating that specialisation is risky without explaining why.
• Skipping the working in calculation questions.

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.