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1.1 Economic foundations

1.1.1a Needs and wants

A need is essential, a want is not

Definition

Need: a good or service that is essential for survival, such as food, clean water, shelter, warmth and basic clothing.

Want: a desire for a good or service that is not essential for survival, such as a holiday, a games console or a Greggs sausage roll.

  1. Everyone shares the same short list of needs, but wants vary with taste, income and advertising.
  2. One need can be met in many ways, and the choice between them is a want: you need to eat, but you want a takeaway rather than plain rice.
  3. When money is tight, households cut wants before needs, because survival depends on needs.

Business Diagrams - Horizontal (47).png

Example
  • The 2022 to 2023 cost-of-living crisis pushed Ofgem's energy price cap sharply higher.
  • UK households kept heating their homes, a need, while cutting streaming subscriptions and takeaways, both wants.
  • A student with £5 faces the same choice: plain pasta meets the need to eat, a meal deal adds taste and convenience.
  • When budgets tighten, wants are always cut first.

Human wants are effectively unlimited

  1. Human wants are effectively unlimited, because satisfying one want creates the next.
  2. Buying a phone soon creates wants for a case, apps and the next model.
  3. Higher incomes expand wants rather than use them up, so even the rich cannot satisfy them all.
  4. Needs behave differently, because the list stays short however rich a person becomes.
Common Mistake
  • Calling something a need does not make it one. Test whether survival depends on it.
  • "I need the new iPhone" describes a strong want, not a need.

Wants change as society gets richer

  1. Wants are not fixed, because technology, fashion and living standards keep changing.
  2. Nobody wanted a smartphone in 1990 because it did not exist, yet today it is one of the most common wants.
  3. As a country grows richer, yesterday's luxuries such as foreign holidays and fast broadband become everyday wants.
  4. Needs shift too, but far more slowly: an internet connection is now close to essential for schoolwork and job applications.
  5. Because wants keep growing, the pressure they put on limited resources never goes away.
Exam technique
  • Define by contrast: a need is essential for survival, a want is not, then give one example of each.
  • For "why are wants unlimited", show the chain: one want satisfied creates the next.
  • To show wants changing, pair a then and a now, such as broadband, not a general claim.
Self review
  • What is the difference between a need and a want?
  • Give one example of a need and one of a want.
  • Why are human wants described as unlimited?
  • Give one reason wants change over time.
  • Why do households cut wants before needs when money is tight?

1.1.1b The central purpose of economic activity

Economic activity exists to satisfy needs and wants

Definition

Economic activity: the production, exchange and consumption of goods and services.

  1. Its central purpose is to produce the goods and services that satisfy people's needs and wants.
  2. Production turns scarce resources into useful output.
  3. Exchange moves that output to the people who want it, usually by buying and selling.
  4. Consumption completes the process, because a good only satisfies a want once somebody uses it.
Example
  • Warburtons buys flour, energy and labour for its bakeries.
  • It turns them into bread, sells it through shops, and a household eats it.
  • Only at that last step is the need to eat actually satisfied.
  • Every other firm does the same job for some other need or want.

Profit is a motive, not the purpose

  1. Firms such as Warburtons produce for profit, and the chance of profit tells them what is worth making.
  2. Profit is how production gets organised, not why an economy produces at all.
Common Mistake
  • Do not answer that economic activity exists to make money.
  • Money is a means. The purpose is producing goods and services that satisfy needs and wants.

Scarcity means some wants go unsatisfied

  1. Resources are scarce and wants are unlimited, so no economy can satisfy every want at once.
  2. Producing to meet wants therefore always means choosing what to make, how to make it and who receives it.
  3. Answering those three questions well is what makes scarce resources go furthest, and the next topic takes each in turn.
Self review
  • What is the central purpose of economic activity?
  • What are the three parts of economic activity?
  • Why does a good only satisfy a want at the consumption stage?
  • Why is profit not the same as the purpose of economic activity?
  • Why can no economy satisfy every want?

1.1.1c Key economic decisions

Scarcity forces every economy to make choices

Definition

Scarcity: unlimited human wants set against limited resources, which forces every society to choose.

  1. No economy can produce everything people want, so it must choose how to use its limited factors of production.
  2. Those choices come down to three basic questions of resource allocation that no economy can avoid.
Example
  • A school canteen works to a fixed budget.
  • It picks which dishes to cook, whether to use ready meals or cook from scratch, and who gets served first.
  • Every economy faces those same three decisions, just on a far bigger scale.

Three questions decide how resources are used

  1. What to produce: which goods and services to make and in what quantities, since making more of one thing means making less of another.
  2. How to produce: which method to use, such as more labour or more machinery.
  3. For whom to produce: how the output is shared out among different people and groups.

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Common Mistake
  • "How to produce" is the method, labour versus machines, not which goods to make.
  • "For whom" is who receives the output, not who pays for the raw materials.

Cadbury answers all three questions

  1. What to produce: whether to make more Dairy Milk bars or expand its range of protein bars.
  2. How to produce: whether to automate more of its Bournville factory or employ more staff on the line.
  3. For whom to produce: whether output goes to UK supermarkets or is exported to shops abroad.
  4. Every producer, and every economy as a whole, answers these same three questions on a different scale.
Self review
  • Why does scarcity force every economy to make choices?
  • What are the three basic allocation questions?
  • What does the "how to produce" question actually decide?
  • What does the "for whom" question actually decide?
  • Give a real example of a UK producer making one of the three decisions.

1.1.1d The main economic groups

Three groups drive all economic activity

Definition

Consumers: the people who buy and use goods and services.

Producers: the firms and individuals who make goods and services.

Government: the body that raises taxes, provides public services and sets the rules consumers and producers follow.

  1. Every economic decision in the UK is made by one of these three groups.
  2. The same person can belong to more than one group, since a plumber is a producer at work and a consumer in the supermarket.
Example
  • One loaf of bread involves all three groups.
  • Greggs bakes and sells it, a shopper buys and eats it, and the government taxes the sale and sets the food safety rules.
  • Each group touches the same loaf for a different reason.

Each group pursues a different aim

  1. Consumers aim for the most satisfaction they can get from a limited income, which is why they compare prices.
  2. Producers aim to make a profit, which is why they supply the goods consumers will pay most for.
  3. The government aims to serve society as a whole, which is why it funds services such as the NHS that a profit-seeking firm would not provide to everyone.
  4. These aims pull against each other, since the price rise that boosts a producer's profit leaves consumers with less satisfaction from the same income.
Common Mistake
  • The government is not just another firm. Its aim is society's wellbeing, not profit.
  • Producers are not only big companies. A market stall or a self-employed plumber is a producer too.

The three groups depend on one another

  1. The three groups are interdependent, meaning each relies on the others to play its part.
  2. Consumers rely on producers for the goods and services they buy.
  3. Producers rely on consumers to buy what they make, so if buying stops, producing stops.

Government links the other two

  1. The government relies on both groups for tax revenue, such as VAT and income tax, to fund its spending.
  2. Producers rely on the government for regulation, for taxes or subsidies on their output, and for infrastructure such as roads.
  3. Consumers rely on the government for public services such as the NHS and state schools.
  4. Because the groups interact constantly, a decision by one affects the other two.
Self review
  • Name the three main economic groups.
  • What does each group mainly aim to achieve?
  • What does it mean that the groups are interdependent?
  • Give one way the government interacts with producers.
  • Give one way the government interacts with consumers.

1.1.2a The nature of an economic resource

Economic resources are scarce inputs

Definition

Economic resource: a scarce input used to produce goods and services, also known as a factor of production.

  1. It is called a resource because an economy can draw on it, and a factor of production because it is combined with others to create output.
  2. A resource is wanted for what it can make, so a bakery oven matters because of the bread it produces, not as an object.
  3. Firms combine these inputs to create output, the goods and services people buy.
Example
  • Greggs turns flour, its ovens and its bakery staff into the pasties and sandwiches it sells.
  • Every one of those inputs is an economic resource.

Scarcity is what makes it economic

  1. Economic resources are scarce, meaning the quantity available is limited while the wants they could satisfy are unlimited.
  2. Scarcity gives a resource alternative uses, so a field can grow wheat or carry houses, but not both at once.
  3. Using it one way therefore means giving up what it could have produced instead, which creates an opportunity cost.
  4. A truly unlimited input would not be an economic resource, because using it would cost nothing and deny nobody.
Common Mistake
  • An economic resource is not just money or raw materials.
  • It is any input used in production, including people's work and the machines they use.

Resources are grouped into four categories

  1. Economies use a huge variety of inputs, so economists sort them into a few categories to keep analysis manageable.
  2. Those categories are the four factors of production, set out with the reward each one earns in the next article.
Self review
  • What is an economic resource?
  • What other name do economists give it?
  • Why are economic resources described as scarce?
  • Why does using a scarce resource create an opportunity cost?
  • Why would a truly unlimited input not count as an economic resource?

1.1.2b The four factors of production

Land, labour, capital and enterprise make output

Definition

Land: all the natural resources used in production, such as farmland, forests, minerals, rivers and the sea.

Labour: the physical and mental human effort that people put into producing goods and services.

Capital: the man-made goods used to produce other goods and services, such as machinery, tools, vehicles and buildings.

Enterprise: the willingness of an entrepreneur to take risks and organise the other three factors into production.

  1. Every business uses all four at once, so the skill is placing each named input in the right category.
  2. Nobody produced land, and its supply is close to fixed, which is why a shop unit on Oxford Street costs far more than one in a market town.
  3. What a firm gets from labour depends on the education, training and experience of its workers, not just the hours they work.
  4. A firm builds up its capital through investment, giving up output today to buy equipment that raises output in future years.
  5. The entrepreneur who supplies enterprise carries the risk, because a business can fail and leave its owner with nothing.
    1. That risk is why enterprise is a separate factor rather than another kind of labour.
Example
  • At a Greggs shop, the site the shop stands on is land.
  • The bakers and counter staff are labour.
  • The ovens, chillers, tills and delivery vans are capital.
  • The franchisee who put up the money and would lose out if the shop failed supplies enterprise.

Each factor earns a different reward

Factors of productiong.png

  1. Land earns rent, the payment for the use of a site or natural resource, such as the monthly rent a coffee shop pays for a unit in a Manchester shopping centre.
  2. Labour earns wages, the pay a worker receives for their time, such as the hourly rate a Tesco shop assistant gets for a shift.
    1. In the UK the National Living Wage sets a legal floor under that hourly rate for eligible workers.
  3. Capital earns interest, the payment for the funds tied up in equipment, such as the interest a haulage firm pays on the loan that bought its lorries.
  4. Enterprise earns profit, whatever is left for the owner once every other cost is paid, such as the sum a barber keeps after settling the shop rent and the staff wages.
    1. Profit is the only reward not agreed in advance, which is exactly why it rewards risk.
  5. These four rewards are also the four kinds of income a UK household can earn, so what a firm pays out as a cost arrives elsewhere as somebody's income.
Common Mistake
  • Capital means machinery, equipment, vehicles and buildings, never money.
  • The £30,000 a bakery borrows is finance, and only the oven it buys is capital.
  • Cash produces nothing by itself, so calling it a factor of production loses the mark.

Spot each factor in a real business

  1. Work through a case study input by input, quoting the detail as well as naming the factor.
  2. A natural resource that has been processed becomes capital, so trees in a forest are land while planks in a joiner's workshop are capital.
  3. The owner of a small business usually supplies two factors, working in it as labour and carrying the risk as enterprise.
  4. A farmer's tractor is capital even though it never leaves the land, because the test is what the input is, not where it is used.
  5. Remove any one of the four and output stops, which is why all four are treated as necessary rather than ranked.
Exam technique
  • Name the factors as land, labour, capital and enterprise, not everyday words such as staff or tools.
  • Pair each factor with its reward: land rent, labour wages, capital interest, enterprise profit.
Self review
  • Name the four factors of production.
  • What is the reward earned by land?
  • Give one example of capital in a bakery.
  • Which factor earns profit, and why is that reward not agreed in advance?
  • Is the money a firm borrows to buy a machine capital?

1.1.3a The basic economic problem and making choices

Scarcity forces every economy to choose

Definition

The basic economic problem: unlimited human wants set against limited economic resources.

Scarcity: the condition of not having enough resources to satisfy every want.

  1. Because the two never match, somebody must decide which wants are met and which go unmet.
  2. That need to choose is what makes economics a subject, since unlimited resources would need no choices at all.
  3. Every choice means giving up another, an idea called opportunity cost, covered in the next article.
Example
  • The NHS has a fixed budget each year but an almost endless list of treatments it could fund.
  • It cannot pay for every drug, nurse and hospital that patients might want.
  • Limited resources force it to choose what to provide, which is the basic economic problem in action.

Scarcity is not the same as a shortage

Common Mistake
  • A shortage is temporary: demand is greater than supply at the current price.
  • Scarcity is permanent, because resources are always limited relative to unlimited wants.

Every decision maker faces the same problem

  1. Consumers choose what to buy with a limited income, so new trainers may mean going without a concert ticket.
  2. Workers choose how to use limited time and skills, such as taking a Saturday shift instead of a day off.
  3. Producers choose what to make with limited resources, so a car factory's line cannot build vans at the same time.
  4. Governments choose how to spend limited tax revenue, so more for the NHS can mean less for defence or schools.
Common Mistake
  • Scarcity is the condition that resources are finite.
  • The economic problem is the need to choose that scarcity creates.
  • Neither ever goes away, because even the richest government cannot have everything at once.

Weigh the benefit against what you give up

  1. Every choice weighs an expected benefit against a cost, and that cost includes the next best alternative given up, not just the money paid.
  2. A choice is worth making only when the benefit is greater than what is sacrificed to get it.
  3. Whose benefits and whose costs are counted changes the answer, which is why decisions involve trade-offs between groups.
  4. Timing matters too, since a benefit that recurs every year can outweigh a cost paid only once.

Leeds City Council weighs a £5 million choice

  1. Leeds City Council has £5 million to spend and must choose between a new leisure centre and resurfacing its most damaged roads.
  2. The leisure centre would improve residents' health and bring in membership income.
  3. Choosing it leaves the roads damaged and raises the vehicle damage claims made against the council.
  4. The health and membership benefits recur every year while the claims are a one-off cost, so the council can reasonably build the centre even though drivers lose out in the short term.
  5. Change one fact, such as the roads being unsafe rather than merely bumpy, and the judgement flips, which is why the reasoning matters more than the answer.
Self review
  • What is the basic economic problem?
  • Why does scarcity force every decision maker to choose?
  • What is the difference between scarcity and a shortage?
  • When weighing up a choice, what two things should be compared?
  • Why could Leeds City Council justify building the leisure centre?

1.1.3b Opportunity cost

Only the next best alternative counts

Definition

Opportunity cost: the value of the next best alternative given up when a choice is made, counting only the single best option forgone rather than everything that was turned down.

  1. It arises from scarcity, so using money, time or materials one way rules out every other use at that moment.
  2. To find it, list the options realistically available, rank them, then name the one at the top of the rejected list.
    1. Only that one counts, however many were rejected, because the chooser could have taken just one of them instead.
  3. The idea judges a decision by what it displaces, which is why economists call every choice a trade-off.

opportunity cost.png

Example
  • You have £8 and a single lunch break, and three things you could do with it.
  • Ranked, they are the meal deal you want most, then a paperback, then topping up your bus card.
  • You buy the meal deal, so the opportunity cost is the paperback alone.
  • The bus card never counts, because you would not have chosen it even without the meal deal.

Consumers, firms and government all face it

  1. A consumer who spends £45 on trainers at JD Sports gives up the concert ticket that was the next best use of that £45.
  2. A worker who takes a Saturday shift at Tesco gives up the revision time that was the next best use of the day.
  3. A producer such as a bakery that runs its ovens on sourdough all morning gives up the sausage rolls those ovens could have baked.
  4. The government that puts an extra £1 billion into the NHS gives up the next best public use of that money, such as new school buildings.
    1. Government choices show the idea most sharply, because a Budget fixes the total before any of it is allocated.
Common Mistake
  • The price on the receipt is not the opportunity cost.
  • The £45 spent on trainers is the money cost; the concert ticket it would have bought is the opportunity cost.

Opportunity cost is not always a money cost

  1. Time is scarce too, so an hour spent one way carries an opportunity cost even when nothing is bought or sold.
  2. Land and equipment can each do only one job at a time, so a farmer who sows a field with wheat gives up the barley it could have grown that season.
  3. Where the sacrifice has no price tag, ask what the resource would otherwise have produced, and describe that.
  4. A free good such as the air you breathe is the one case with no opportunity cost, because using it leaves nobody else with less.
    1. That is a quick test of understanding: if a choice really costs nothing, the resource was not scarce.
Exam technique
  • Write next best alternative forgone, because the definition mark usually sits on next best.
  • Never list two or three sacrificed options, since only the single highest ranked one counts.
  • Where time or land is given up rather than cash, state the alternative use, not the spending.
Self review
  • Define opportunity cost in one sentence.
  • Why does scarcity make opportunity cost unavoidable?
  • If four options are rejected, how many count as the opportunity cost?
  • State the opportunity cost of spending £1 billion more on the NHS.
  • Give one opportunity cost that does not involve money.

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A comparison showing needs as essential and wants as desirable but non-essential

A need is a good or service essential for survival, such as clean water, food, shelter, warmth and basic clothing. A want is a desire for something that is not essential for survival, such as a holiday, a games console or a takeaway.

Everyone shares a relatively short list of needs, but wants vary with tastes, income and advertising. One need can be met in several ways, so needing food does not mean you need a particular meal.

Economic activity is the production, exchange and consumption of goods and services. Its central purpose is to satisfy people's needs and wants, although firms may be motivated by profit.

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In economics, what is a need?

1.1 Economic foundations Revision Guide

  1. GCSE
  2. /Economics
  3. /1.1 Economic foundations

Revision notes for AQA GCSE Economics 1.1 Economic foundations: explanations and worked examples on 1.1.1a Needs and wants, 1.1.1b The central purpose of economic activity, 1.1.1c Key economic decisions, 1.1.1d The main economic groups, 1.1.2a The nature of an economic resource, 1.1.2b The four factors of production, 1.1.3a The basic economic problem and making choices, and 1.1.3b Opportunity cost.

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