OCR GCSE Economics: Economic groups, factors of production and scarcity (J205) – Revision Notes

These are condensed notes for sections 1.1 and 1.2 of the OCR GCSE (9-1) Economics specification (J205, version 2.0, first assessment 2019), part of component J205/01, Introduction to Economics. J205 has no tiers. Longer explanations sit in the study guide. Test yourself with the practice questions, use the checklist, visit the course hub or try a free diagnostic. Every figure below is made up for illustration.

Key definitions

Term	Definition
Scarcity	Resources are limited relative to wants
Unlimited wants	People always want more; satisfying one want creates others
Opportunity cost	The gain from the best use you passed up
Consumer	Buys goods and services to meet wants
Producer	Makes goods or provides services using factors of production
Government	Taxes, spends, regulates and provides public services
Land	Natural resources, and space (reward: rent)
Labour	People’s physical and mental work (reward: wages)
Capital	Man-made equipment used to produce (reward: interest)
Enterprise	Organising factors and taking risks (reward: profit)
Labour-intensive	Uses a high proportion of labour
Capital-intensive	Uses a high proportion of machinery and equipment

1.1 Economic groups at a glance

Group	Role	Depends on
Consumers	Buy output; supply labour; pay taxes	Firms for goods and jobs; government for services
Producers	Employ factors; make output; pay wages and taxes	Consumers for sales; households for labour; government for infrastructure and law
Government	Collects tax; provides services; makes rules; redistributes income	Taxes from firms and households

Interdependence in five links

1. Households supply labour.
2. Firms pay wages and other rewards.
3. Households spend on output.
4. Both pay tax.
5. Government spends on services both use.

Use “this leads to” chains. Example: higher business tax, so lower profit, so less investment and fewer jobs, so lower household spending, so lower sales and lower tax receipts. Then evaluate: it depends on how long it lasts and what the tax funds.

1.1 Factors of production and how to combine them

Capital is equipment, not money. A van is capital; the cash used to buy it is not.

Method: compare two ways of producing

1. Output per worker = total output ÷ number of workers.
2. Total cost = wages bill + equipment cost.
3. Cost per unit = total cost ÷ output.
4. Compare, then comment on risk, jobs and demand.

Reminder. A firm makes 150 units at a total cost of £900. Cost per unit = £900 ÷ 150 = £6.00. A firm with 8 workers makes 400 units: 400 ÷ 8 = 50 each. After buying a machine, 6 workers make 720: 720 ÷ 6 = 120 each.

Choice of method depends on relative factor prices, the product, scale, available skills and demand.

1.2 Scarcity, wants and the economic problem

Scarcity is permanent and applies to all economies. It is not the same as a temporary shortage of one product. The economic problem is the need to choose. It produces four linked questions.

Question	Examples
Allocation	How should limited resources be shared between uses, and who decides: markets, government or a mix?
What	Hospitals or roads? Food crops or fuel crops?
How	Labour-intensive or capital-intensive? Which materials and energy?
For whom	Who receives the output? How is income shared?

Every answer to one question affects the others. Choosing capital-intensive methods (how) can mean fewer jobs and so a different pattern of incomes (for whom).

Opportunity cost

Steps to follow

1. Write down the realistic options.
2. Put them in order of preference.
3. Pick out the top option you rejected.
4. Give it in units: money, time, goods or services.

Reminder 1. A student can work a 6-hour shift at £9 an hour and earn 6 × £9 = £54. If she instead spends the time on a trip she values more, her opportunity cost is the £54 she gave up (if the shift was her best alternative).

Reminder 2. A hairdresser has an 8-hour day (480 minutes). A haircut takes 30 minutes and a colouring takes 120 minutes. Opportunity cost of one colouring = 120 ÷ 30 = 4 haircuts. A full day of colourings gives 480 ÷ 120 = 4 colourings; a full day of haircuts gives 480 ÷ 30 = 16 haircuts.

Reminder 3. In a table of production options, the cost of moving between options is the fall in the other good. If the cost per extra unit rises, resources are not equally suited to both goods.

Applies to consumers, producers and governments. It is not the total of all alternatives.

Evaluating economic choices

Framework

1. List costs and benefits (money and non-money).
2. Group them: economic, social, environmental.
3. Say who gains and who loses.
4. Compare size and timing: short term against long term.
5. Reach a judgement and say what it depends on.

Sustainability types

Type	Question to ask	Example point
Economic	Can it keep generating income and jobs?	A mine closes when the ore runs out
Social	Does it support well-being and fairness over time?	Job losses hurt a whole town
Environmental	Does it protect natural resources?	Overfishing reduces future catches

Short worked reminder

A council compares a car park earning £108,000 a year for a £360,000 build with a garden costing £60,000. Payback on the car park is £360,000 ÷ £108,000 = 3.3 years. The garden has no income, but brings social and environmental benefits that cannot be priced easily. The judgement depends on which the council values more.

Model evaluation chain

Point: a firm replaces five workers with a machine. Effect: cost per unit falls, so it can cut prices or raise profit. Cost: five households lose wages and spend less locally. Weighing: the firm gains at once, but the community bears a lasting social cost unless the workers find new jobs. Judgement: it is justified if demand is strong and retraining is available; it is harder to justify if the town depends on those wages. Opportunity cost: the wages and community goodwill given up.

Linking 1.1 and 1.2

Every group faces scarcity. Consumers have limited income and time. Producers have limited factors. The government has limited tax revenue. Each group therefore chooses, and each choice has an opportunity cost that falls on someone else in the chain.

Must-know distinctions

• Scarcity versus shortage: scarcity is always present; a shortage is temporary and product-specific.
• Needs versus wants: needs are essentials; wants have no limit.
• Capital versus money.
• Labour-intensive versus capital-intensive.
• Opportunity cost versus total cost of a choice.
• Economic versus social versus environmental sustainability.
• Producers (firms) versus the government as a provider of services.

Quick self-test

1. Define opportunity cost.
2. Which factor of production is a delivery van, and what is its usual reward?
3. A hairdresser’s haircut takes 30 minutes and a colouring takes 120 minutes. What is the opportunity cost of one colouring, in haircuts?
4. A workshop with 8 workers makes 400 units. After buying a machine, 6 workers make 720. By how much does output per worker rise?
5. A firm makes 150 units for a total cost of £900. What is the cost per unit?
6. Name the three main economic groups and give one link between two of them.
7. A student turns down a 6-hour shift at £9 an hour to revise. Give her opportunity cost, assuming the shift was her best alternative.
8. Is “a bakery sells out of bread by noon” an example of scarcity? Explain.
9. A government builds solar plants rather than coal plants. Which of the “what, how, for whom” questions is mainly answered?
10. Overfishing raises catches now but reduces them later. Which type of sustainability is at risk?

Answers

1. The value of the next best alternative given up.
2. Capital; interest.
3. 120 ÷ 30 = 4 haircuts.
4. 400 ÷ 8 = 50; 720 ÷ 6 = 120; rise = 70 units per worker.
5. 900 ÷ 150 = £6.00.
6. Consumers, producers, government. Example: producers pay wages to consumers, who spend them on producers’ output.
7. 6 × £9 = £54.
8. No. That is a shortage of one product on one day. Scarcity means limited resources compared with unlimited wants across the whole economy.
9. “How” (and also “what” is produced).
10. Environmental (and, in time, economic, as the industry’s income falls).

Where marks are usually lost

• Writing “money” when defining capital.
• Naming several alternatives as the opportunity cost instead of the single best one.
• Leaving out units or the working in a calculation.
• Describing a business as scarce rather than its resources.
• Listing costs and benefits with no judgement or no reason for it.
• Writing “sustainable” with no type and no link to the context.
• Treating interdependence as a list of separate roles rather than a chain of cause and effect.
• Copying a definition when the question says “explain” and asks for the context.

Official syllabus

OCR GCSE (9-1) Economics (J205), specification version 2.0 (June 2026), first assessment 2019, published by OCR (Oxford Cambridge and RSA). Sections 1.1 and 1.2 of Introduction to Economics.