GCSE Economics Key Terms & Vocabulary

Universal Credit

a payment to help with living costs for people on a low income, out of work or unable to work.

Claimant Count

the number of people claiming unemployment-related benefits; since April 2015 it includes Universal Credit claimants required to seek work as well as Jobseeker's Allowance claimants.

Claimant Count

usually lower than ILO unemployment because some unemployed people are not entitled to claim unemployment-related benefits or choose not to.

CPI

an index number; since the January 2016 figures it has been referenced to 2015 = 100, so an index of 110 means prices are 10% above the base year.

Current account balance

the sum of the trade balance (exports minus imports) and net primary and secondary income.

Current account balance

made up of net trade (in goods and services), net primary income and net secondary income.

Cyclical unemployment

due to a lack of demand for goods and services and rises in recessions.

Current account deficit

the country had fewer incomings from abroad than outgoings, making it a net borrower that relies on foreign funding.

Deflation

when overall prices fall.

Economically active

people aged 16 and over who are either in employment or unemployed; those without a job who have not sought work are economically inactive.

Frictional unemployment

transitional unemployment due to people moving between jobs.

GDP

the total value of goods and services produced in a country over a specific time period.

Economic growth typically

GDP growth, the change in a country's output over time.

Income

the money an individual or household receives regularly over a specific period, e.g. wages, dividends or rent; it is a flow.

Inflation

when prices rise, and how quickly they rise is called the rate of inflation.

ILO unemployment

measured using the Labour Force Survey, the largest regular household survey in the UK.

High unemployment

a loss of potential output, with the economy operating inside its production possibility frontier.

Net wealth

calculated as the value of assets minus debts, e.g. a house's value minus the mortgage owed plus savings.

Nominal growth

the change in the money value of GDP at current prices; real growth adjusts for changes in prices, so it shows the change in the volume of output.

Nominal values

measured in current prices; real values are adjusted for inflation, so pay rising more slowly than prices is a fall in real pay.

Economy

in recession when it has two consecutive quarters (six months) of negative growth.

Seasonal unemployment

due to regular and predictable seasonal changes in labour demand, e.g. in tourism, farming and construction.

Current account surplus

the country received greater inflows from abroad than it paid out, making it a net lender.

Trade deficit

when the value of imports exceeds the value of exports over a given period.

Unemployment rate

the number of unemployed people divided by the economically active population, expressed as a percentage.

Wealth (net worth)

the total value of assets owned minus liabilities; it is a stock accumulated over time, e.g. savings, shares, property and pensions.

Inflation can reduce the real value of debt, benefiting borrowers when real interest rates are negative.

In a boom, rising incomes and consumer spending pull in more imports, such as cars and household appliances.

Low labour productivity raises unit labour costs, weakening price competitiveness and contributing to a deficit.

A strong exchange rate makes imports cheaper and exports more expensive, which can cause a deficit.

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Complementary goods

products that are bought and used together, such as fish and chips or smartphones and apps.

Demand

the willingness and ability of consumers to buy a quantity of a good or service; effective demand is a want or need supported by an ability to pay.

Derived demand

demand for a good that arises from the demand for another good, for example demand for steel derives from demand for cars or buildings.

Demand

price elastic when quantity demanded is highly responsive to a change in price, with a PED coefficient greater than 1 (ignoring the sign).

Supply

price elastic (responsive to price changes) when PES is greater than 1 and price inelastic when PES is less than 1.

Necessity like bread

demanded inelastically, whereas luxuries such as cars are likely to have price elastic demand.

Demand

price inelastic when the PED coefficient is less than 1; AQA credits a PED of -0.5 as meaning demand is price inelastic, with quantity demanded changing by a smaller proportion than price.

Joint supply

where a change in the supply of one good changes the supply of a by-product, for example more beef production raises the supply of hides, and less lamb reduces the supply of wool.

Market demand

the total demand for a good from all consumers: the horizontal sum of individual demand at each price level.

Market supply

the total quantity all producers are willing and able to supply at each price: the horizontal summation of individual firms' supply curves.

PED

measured as the percentage change in quantity demanded divided by the percentage change in price.

PED

normally negative: the negative sign indicates that price and quantity demanded are inversely related.

PES

calculated as the percentage change in quantity supplied divided by the percentage change in price.

PES

positive because higher prices act as an incentive to supply more.

Substitute goods

two alternative goods that could be used for the same purpose, such as tea and coffee or competing supermarket chains.

Supply

the willingness and ability of producers to create goods and services and take them to market.

Excess demand typically happens when the price is set below its equilibrium level, while a price set too high relative to demand causes excess supply.

A fall in the price of one good expands quantity demanded of it and can raise demand for its complement.

A decrease in demand shifts the demand curve left, giving a new equilibrium price and quantity that are both lower than the original.

An increase in demand, for example from higher consumer incomes or a larger population, raises the equilibrium price (and quantity).

At the equilibrium price the quantity demanded equals the quantity supplied, so there is no excess demand or excess supply and the market clears.

Excess demand (a shortage) occurs when quantity demanded is greater than quantity supplied at the current price, putting upward pressure on price.

Excess supply (a surplus) occurs when quantity supplied exceeds quantity demanded at the current price; producers may lower the price to sell the surplus, moving the market back towards equilibrium.

Expecting a future rise in a good's price can increase current demand for it.

Firms with spare capacity (idle workers or resources) can expand output quickly, so their supply is more price elastic; AQA lists spare capacity as a PES factor.

Available stocks and the feasibility of storing the product make supply more elastic; crops that cannot be stored without losing quality have price inelastic supply.

There is usually a time delay between crops being planted and harvested, so farm output responds slowly to price changes; time period is an AQA-listed PES factor.

Habitually bought products and brand loyalty reduce PED, and the time period is a further factor.

Goods taking a larger proportion of income are more price elastic: PED for a daily newspaper is likely to be much lower than for a new car.

The more numerous and closer the substitutes, the more price elastic demand is; AQA mark schemes list available substitutes as a factor.

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Cartel

an explicit agreement among firms to coordinate their actions, such as setting prices or output.

Gross pay

earnings before deductions; net (take-home) pay is what is left after deductions such as income tax and National Insurance.

Oligopolistic firms

highly aware of, and must react to, the actions and decisions of their competitors.

Profits

likely to be lower in a competitive market than in one dominated by a small number of producers.

Monopolistic competition

a market structure with many firms selling differentiated products.

Labour supply

also affected by non-monetary factors such as job security, working conditions, risk and anti-social hours.

Oligopoly

a market dominated by a small number of large firms.

Oligopoly

a market structure with a few large firms who compete or collude with each other.

Pure monopoly

a single supplier in a market with no close competitor or substitute; the firm effectively is the industry.

Market structures

distinguished by the number of producers, the degree of product differentiation and the ease of entry into the market.

Barriers to entry are factors that hinder new firms from entering a market, such as economies of scale, government regulations or patents; brand loyalty is another.

Barriers to entry allow firms to keep supernormal (above-normal) profits in the long run.

The CMA took over from the Office of Fair Trading and the Competition Commission when Parts 3 and 4 of the Enterprise and Regulatory Reform Act 2013 commenced on 1 April 2014.

The Competition and Markets Authority is an independent non-ministerial department that reviews mergers which could weaken competition and acts against cartels.

Competition law prohibits collusion such as price fixing, and in the UK the CMA takes action against cartels and anti-competitive conduct.

In a competitive sector where staff are scarce, firms must offer higher wages to attract and retain workers (e.g. UK supermarket pay rises reported in February 2025).

Competition encourages firms to differentiate their products and services, widening consumer choice.

Competition gives firms an incentive to improve efficiency and reduce production costs.

The pressure to stay ahead of rivals leads to more product and process innovation.

Competition between suppliers tends to drive prices down.

The demand for labour is a derived demand: it depends on the demand for the goods and services that labour produces.

Unique features or branding (product differentiation) can create market power, allowing firms to charge higher prices.

When new firms enter a competitive market, supply increases, prices fall and the profits of existing firms are reduced.

Minimum entry requirements, such as long training in medicine, limit labour supply and push pay higher, creating wage differentials.

In perfect competition firms sell identical (homogeneous) products that are perfect substitutes for each other.

In the 2026/27 tax year (outside Scotland) the Personal Allowance is £12,570 and income tax is 20% basic rate, 40% higher rate and 45% additional rate above £125,140.

The higher the cost of labour, the less profitable it is to hire workers, so firms demand less labour.

Labour demand rises with higher worker productivity and a higher price for the product, and falls when cheaper substitutes such as automation exist.

The labour supply curve for an occupation slopes upward because higher wages attract workers from other industries.

In a highly competitive market there are many buyers and sellers and no single firm has significant influence over the price.

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Customs union

a type of free trade area in which members also agree to have a common external tariff on imports from non-members; the EU is an example.

Pounds

demanded when foreign consumers exchange their currency into pounds to pay for UK exports and when foreign investors buy pounds.

Exchange rate

the price of one country's currency in terms of another country's currency.

UK exports

goods and services produced or sourced in the UK and sold abroad; UK imports are goods and services sold to the UK that were produced abroad.

Free trade area

an agreement between two or more countries to eliminate import tariffs and other trade barriers on goods traded between them, while each member keeps its own trade policy towards outside countries.

GDP per head

calculated with GDP as the numerator and population as the denominator (GDP divided by population).

Globalisation

a process by which economies and cultures have been drawn deeper together and become more interconnected through global networks of trade and capital flows.

UK trade statistics

unusually volatile between 2019 and 2022 because of the pandemic, global recession, supply chain disruption, EU exit and Russia's invasion of Ukraine, showing how events abroad affect UK trade.

Multinationals' profits

often repatriated to their home country, they may exploit weaker environmental laws, and they may use monopsony power to pay low wages.

Quota

a limit on the amount of a specific good that can be imported into a country.

EU internal (single) market

"an area without internal frontiers in which the free movement of goods, persons, services and capital is ensured".

Pounds

supplied when UK consumers and firms exchange pounds for foreign currency to pay for imports, so higher demand for imports tends to make the pound depreciate.

Tariff

a tax imposed on imported goods, typically aimed at making foreign products more expensive to protect domestic industries.

When the price of the pound rises it has "appreciated" (got stronger); when it falls it has depreciated (weakened).

Protectionist measures often lead to higher prices for consumers, invite retaliation from other countries and reduce economic efficiency.

Arguments for protection include protecting jobs, sheltering new infant industries until they can compete, and countering dumping (selling below cost abroad).

Trade lets countries import goods that are cheaper than those produced at home and increases the variety of goods and services available to consumers.

Countries rely on trade to acquire resources not available domestically; for example Japan imports oil because it has no significant domestic reserves.

Exporting lets producers increase production and benefit from economies of scale, while imports expose domestic producers to global competition.

Benefits of globalisation include lower prices and greater choice for consumers and economies of scale for firms.

Costs of globalisation include environmental costs, tax avoidance and a brain drain of skilled workers from some countries.

On 15 December 2024 the UK officially joined the CPTPP (Comprehensive and Progressive Agreement for Trans-Pacific Partnership), a 12-nation trade deal.

With a rate quoted as £1 = x units of foreign currency, an amount of foreign currency is converted into pounds by dividing by x (for example €200,000 at £1 = €1.10 is €200,000 / 1.1).

Globalisation played a key role in the decline of manufacturing employment in the US, UK and Europe, creating structural unemployment among displaced workers.

OCR requires learners to explain how development is measured, including GDP per capita, life expectancy, access to health care, technology and education.

Improved technology, such as the internet, makes it easier and cheaper to communicate and share information around the world, helping firms coordinate globally.

From 1970 the rapid adoption of the steel transport container reduced the costs of moving goods, making trade cheaper and more efficient.

Reduced tariff barriers, often achieved with the support of the WTO, and the growth of trading blocs have encouraged global trade.

Fairtrade's Minimum Price acts as a safety net that protects farmers and workers in poorer countries when market prices fall, an example of ethical trading by UK buyers.

The UN's Human Development Index measures health by life expectancy at birth, education by years of schooling and the standard of living by gross national income per capita.

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Balanced budget

government revenue equals government spending over the period.

Bank Rate

the core interest rate in the UK and the Bank of England's MPC decides what level it should be.

Budget surplus

revenue is greater than spending, and the ONS notes debt can be significantly reduced if the public sector runs a surplus.

Deficit

the gap between income and spending in one period, whereas the debt is the total amount of money owed, built up over time.

Deficit

usually funded by government borrowing, and that borrowing adds to the total debt.

Fiscal policy

the deliberate alteration of government spending or taxation to influence the level of aggregate demand in the economy.

Landfill Tax

paid by businesses on top of normal landfill fees, charged per tonne of waste sent to landfill.

Lower income tax rates

intended to increase the incentive for people to work, though this is not guaranteed.

Monetary policy

action by the Bank of England, decided by its Monetary Policy Committee, to influence interest rates and so the rate of inflation.

Privatisation

selling state-owned assets to the private sector, where the profit motive gives firms an incentive to cut costs.

Quantitative easing

a tool in which the Bank buys bonds, mostly UK government bonds, to lower long-term borrowing costs and support spending; it was first used in March 2009 in response to the Global Financial Crisis.

Supply-side policies

government attempts to increase productivity and efficiency, raising the economy's productive capacity.

AQA names supply-side policies such as investment in education and training, lower direct taxes, lower taxes on business profits, trade union reform and privatisation/deregulation.

Budget balance = government revenue minus government spending; a negative result is a deficit and a positive result a surplus.

If revenue is insufficient to pay for expenditure, the government has a budget (fiscal) deficit.

Contractionary fiscal policy decreases aggregate demand through cuts in government spending or increases in taxes, for example to reduce inflationary pressure.

A cut in corporation tax gives firms more retained profit for investment, but firms may instead pay it to shareholders or save it.

Deregulation reduces barriers to entry so new firms can enter a market, and more competition can lower prices and improve quality.

Better education and training can improve labour productivity and increase aggregate supply.

Expansionary fiscal policy increases aggregate demand through higher government spending or cuts in taxes.

A fiscal stimulus can be inflationary, especially if the government has to borrow from the financial markets.

Fiscal policy can change levels of income and expenditure in the economy and can be used to help achieve government economic objectives.

There may be a considerable time lag between government spending and the benefits of that spending.

Free-market supply-side policies aim to increase competitiveness, while interventionist ones involve government action to overcome market failure.

A higher Bank Rate raises charges on many mortgages and loans and gives savers a bigger return, so people spend less and inflation falls.

Higher interest rates tend to discourage businesses from taking out loans to fund investment.

The Bank of England has had independence over monetary policy since May 1997: the Government sets the inflation target and the Bank sets interest rates to meet it.

The Chancellor's 2024 remit re-confirmed the inflation target as 2% measured by the 12-month increase in the Consumer Prices Index (CPI).

Government can provide information to consumers and producers so that they better understand the costs or benefits of a good.

Lower interest rates have the reverse effect: loan payments fall, savers get a smaller return, and spending is encouraged, which can support growth and employment.

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Average fixed cost

total fixed cost divided by output, so it falls as output rises (in the Economics Online worked example AFC falls from 50 at 2 boats to 25 at 4 boats).

Average revenue

total revenue divided by quantity sold, which equals the price per unit.

Productivity

the main determinant of living standards.

Production

the total output made, whereas productivity is output relative to inputs, so total output can rise (by adding workers) without productivity rising.

Productivity

a measure of the efficiency of the labour force, measured by output per worker or output per worker hour.

Average cost (cost per unit) = total cost / quantity of output.

Productivity growth and lower unit costs are key determinants of the competitiveness of British firms.

Businesses can afford higher wages when their workers are more efficient.

Business objectives include profit, sales growth and increasing market share.

In a larger firm more layers of hierarchy can distort messages, and fewer face-to-face meetings reduce feedback.

It becomes harder to coordinate and control a very large firm so that everyone pursues the same goal.

Workers in large firms may feel isolated and less appreciated; the main result of poor motivation is falling productivity and higher average labour costs per unit.

Diseconomies of scale occur when a business grows so large that its costs per unit increase.

Economies of scale are the cost advantages a business gains by expanding its scale of production; their effect is to reduce average (unit) costs of production.

The motivations of producers (such as maximising profit) may conflict with ethical and moral interests.

Industries with the most up-to-date capital machinery tend to be more productive.

The skills of the labour force, including job-specific training, are a key influence on productivity.

Productivity also depends on how quickly new technology is brought into production and on managerial skills.

Financial economies: larger firms are seen as more creditworthy and can borrow at lower interest rates than small firms.

Fixed costs do not vary with output; examples include rent, insurance and set-up costs.

Higher prices imply higher profits, which gives producers the incentive to expand production.

Managerial economies: larger firms can employ specialised management teams.

AQA 8136 9-mark 'assess' questions are marked in three levels: Level 1 (1-3 marks) is "A basic conclusion or assertion" with judgements supported by little or no evidence and "no chain of reasoning attempted"; Level 2 (4-6) is "A partially justified conclusion" with an incomplete analysis that "starts to develop a chain of reasoning"; Level 3 (7-9) is "A fully justified conclusion with sustained evaluation" and "a well-developed and logical chain of reasoning".

Objectives can conflict: achieving higher sales in the short term, for example by cutting prices, will reduce short-term profit.

The ONS publishes UK productivity measures including output per hour, output per job and output per worker.

Profit = total revenue - total costs; when total costs exceed total revenue the firm makes a loss.

Purchasing economies: a large firm can buy its inputs in bulk at negotiated discounted prices.

A firm may aim to increase its profits by reducing average costs and/or increasing revenues.

Risk-bearing economies: larger firms are better able to handle unexpected market fluctuations and risks, for example by spreading risk across products and markets.

Technical economies: large firms can afford expensive, specialist machinery that a small firm would not find cost-effective.

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Direct taxes

paid directly to the government by the individual or business and cannot be passed on; examples are income tax, corporation tax, National Insurance, capital gains tax and inheritance tax.

Indirect taxes

taxes on spending, imposed on producers; examples are VAT and duties on fuel, alcohol and tobacco.

Interest

the cost of borrowing money or the reward for saving.

When Bank Rate rises, lenders usually raise the rates they charge borrowers and offer savers more; a cut has the opposite effect.

In 2025-26 the OBR estimated onshore corporation tax would raise £96.7 billion; the main rate rose from 19% to 25% in April 2023.

Net interest payments on the national debt were expected to cost £110 billion in 2025-26.

With a fixed interest rate the interest cost stays the same over the credit period whatever happens to the base rate.

Of departments' day-to-day spending in 2025-26, the biggest items were health (£204 billion), education (£95 billion) and defence (£39 billion).

Higher interest rates make saving more attractive and borrowing more expensive, which discourages consumer and business spending.

In 2026/27 UK income tax (outside Scotland) is 0% up to £12,570, then 20%, 40% and 45% on higher bands, which makes it progressive.

In 2025-26 the OBR estimated income tax would raise £329 billion, 26.7% of all receipts, the largest single source.

Interest earned in one year = amount saved x annual interest rate.

Low interest rates reduce the cost of borrowing for businesses, making investment projects more attractive; higher rates discourage investment.

The interest rate on a loan or mortgage can also depend on how long it is taken out for.

Lower interest rates give savers a smaller return and make loans cheaper, which encourages spending.

A rise in interest rates increases repayments on variable-rate mortgages and loans, reducing households' disposable income.

Bank Rate, the core interest rate in the UK, is set by the Bank of England's Monetary Policy Committee, which meets eight times a year.

In 2025-26 the OBR estimated National Insurance contributions would raise £205.4 billion, 16.7% of all receipts.

With a progressive tax, the average rate of tax rises as income rises.

The effect of a change in the interest rate on savings or borrowing = amount x change in the rate.

The OBR (March 2026 forecast) expected UK public sector income of £1,235 billion in 2025-26, with taxes making up 90% of it.

Measured against household income, indirect taxes can be regressive: the poorest fifth pay 27% of disposable income in indirect taxes against 14% for the richest fifth.

The greater the risk a lender thinks a borrower will not repay, the higher the interest rate it charges.

The OBR (March 2026 forecast) expected UK public spending of £1,368 billion in 2025-26.

The standard rate of VAT increased to 20% on 4 January 2011 (from 17.5%).

In 2025-26 the OBR estimated VAT would raise £179.6 billion, 14.6% of all receipts.

Cash transfers through the welfare system were expected to cost £333 billion in 2025-26 (March 2026 forecast), the biggest component of annually managed expenditure and larger than the biggest departmental day-to-day item, health (£204 billion).

Goods

tangible things that are produced, bought or sold, and then consumed.

Market

an opportunity for buyers and sellers to interact in order to establish price.

Services

activities that other people or businesses do for you, such as a haircut or a restaurant meal, and are intangible.

Specialisation

the concentration of individuals, firms or nations on producing a limited range of goods or services.

Through their choices consumers send information to producers about their changing needs and wants, and no single body directs production.

The division of labour is breaking a production process down into smaller tasks, with each worker specialising in one.

For a firm, the division of labour raises labour productivity, which lowers the cost per unit and can allow lower prices.

The division of labour can cause boredom and alienation; dissatisfied workers may take less pride in their work, quality can suffer and absenteeism can rise.

The tertiary sector's share of UK employment rose from 51.5% in 1920 to 83.6% in 2016, when the primary sector employed just 1.3% of workers.

In a highly specialised economy direct barter becomes impractical, so money is used as a medium of exchange to trade surpluses.

In a factor market the factors of production are traded: households sell them and firms buy them, paying rent, wages, interest and profit.

In a market economy, the decisions of consumers and businesses interact through prices to determine the allocation of scarce resources.

AQA 8136 6-mark 'analyse' questions are marked in three levels whose descriptors contain no evaluation criterion: 1-2 "Analysis of discrete points of the economic evidence with no chain of reasoning attempted"; 3-4 "An incomplete analysis of the economic evidence, starts to develop a chain of reasoning"; 5-6 "A full analysis of the economic evidence, a well-developed and logical chain of reasoning".

OCR J205/01 6-mark 'Evaluate' questions (asterisked extended responses) are marked in three levels, each descriptor describing the top of the level: Level 1 (1-2 marks) has little or no application, limited analysis and "Limited evaluation" with unsupported statements; Level 2 (3-4) has good application, limited analysis and reasonable evaluation where "There may be a judgement, but this will not be fully supported"; Level 3 (5-6) has good application, reasonable analysis and good evaluation "with a fully supported judgement".

The price mechanism allocates resources but does not ensure an equitable (fair) distribution.

The primary sector extracts natural resources: the ONS includes agriculture, fisheries and forestry, and mining and quarrying.

In a product market goods and services are traded: firms sell and households buy.

Prices ration scarce resources when demand outstrips supply: the price rises so only buyers willing and able to pay obtain the good.

The secondary sector produces goods: the ONS includes manufacturing, construction, and gas, electricity and water.

The ONS reported that services made up 79.3% of UK GDP, production 14.0%, construction 6.1% and agriculture 0.7% (ONS Construction statistics, 2017 edition, covering 2016).

Service industries accounted for 82% of total UK economic output (gross value added) and 83% of employment in April to June 2026.

The service sector's share of UK GDP rose from 46% in 1948 to 79% in 2013, while the shares of production and agriculture fell.

Prices perform a signalling function: they adjust to show where resources are required, rising where demand is high relative to supply.

In The Wealth of Nations (1776) Adam Smith described pin-making divided into about eighteen distinct operations, letting ten workers make upwards of 48,000 pins a day.

Smith gave three reasons the division of labour raises output: greater dexterity of each worker, time saved not switching between tasks, and the invention of labour-saving machines.

Dependence on a single industry or export leaves an economy exposed to shocks such as a fall in demand.

The tertiary (services) sector includes transport, retail and wholesale distribution, finance, public administration, professional services, and hotels and catering.

Economic resource

an input used to produce goods and services, and such resources are limited (scarce).

Enterprise

the willingness and ability to organise the other factors and take the risks of production.

Economic goods

scarce relative to demand and have an opportunity cost, while free goods such as air are abundant and have no opportunity cost in consumption.

Economic groups

interdependent: households buy goods and services from firms, firms pay households rewards for factors of production, and the government taxes and spends.

Labour

the physical and mental effort that people put into production.

Land

all natural resources used in production, such as minerals, water and forests.

Need

something you must have in order to survive, such as clean water or food.

Basic economic problem

the scarcity of finite resources relative to virtually unlimited wants and needs.

Want

something a person desires but which is not essential for survival.

Capital is the man-made resources used in production, such as machinery, tools, equipment and buildings.

The central purpose of economic activity is the production of goods and services to satisfy needs and wants.

Because resources are scarce, individuals, firms and governments all have to make choices and trade-offs about how to use them.

Rational decision-makers weigh the benefit of an option against its cost, including the opportunity cost.

The rewards to the factors of production are rent (land), wages (labour), interest (capital) and profit (enterprise).

The entrepreneur combines the other factors, and production that relies mainly on capital rather than labour is called capital intensive.

What people regard as needs and wants is not fixed: the AQA specification requires students to understand how needs and wants can change over time.

Even when nothing is charged to the user, scarce resources are used up in production, so an opportunity cost still exists ("there is no such thing as a free lunch").

Opportunity cost measures the cost of any choice in terms of the next best alternative foregone.

If a government spends £10 billion on the NHS, that £10 billion is no longer available for its next best use, such as education or transport.

Taking time off work has an opportunity cost in lost wages: at £6 an hour, an 8-hour day off costs £48 of income.

OCR requires students to evaluate the costs and benefits of economic choices, including the impact on economic, social and environmental sustainability.

Consumers, producers and the government are the main economic groups in an economy.

The key economic decisions are what to produce, how to produce, and who is to benefit from the goods and services produced.

When the Bank of England raises Bank Rate, banks usually increase the interest they charge on loans and lenders typically offer more on savings.

Most money in the UK is created by commercial banks when they provide loans, by crediting the borrower's account with new deposits.

High street banks lend to families and businesses, for example to a business that wants to hire more people and expand, which helps the economy grow.

Banks make a profit by charging more interest for lending money than they pay out on people's savings.

Banks look after people's money, lend it, and help them pay for things with it; in return they can use the money deposited with them to earn a profit, for example by lending it to other people.

Without money, trade relies on barter, which only works when each trader has what the other wants (a coincidence of wants), which is often hard to find.

The Bank of England works for financial stability, including annual stress tests of the UK's largest banks, building societies and insurers.

The Bank of England was granted operational independence over monetary policy on 6 May 1997; the 2% inflation target it aims for is set by the Government.

The Bank of England issues the banknotes people spend in shops and provides wholesale banking services to the UK Government.

The Bank of England sets Bank Rate, the UK's core interest rate, and the decision is taken by its nine-member Monetary Policy Committee.

Banks tend to be owned by shareholders, whereas building societies are mutuals owned by their members.

Since the 2008 financial crisis, the Bank of England has required UK banks and building societies to hold more capital as a buffer against losses.

As a means (standard) of deferred payment, money allows agreements on future payments, such as loans and contracts.

If a UK bank fails, savers can reclaim their money up to a limit through a compensation scheme; the deposit protection limit rose from £85,000 to £120,000 on 1 December 2025.

Money holds its value well only when the currency is stable and inflation is low.

People and businesses buy insurance for a smaller, known premium to remove the risk of a larger loss, and the losses of the few are spread among the many.

The main agents in the financial sector include the Bank of England, commercial banks and building societies (AQA), and OCR adds insurance companies.

As a medium of exchange, money acts as an intermediary in buying and selling goods and services.

The Bank of England's explainer (retrieved 2026-10-22) shows bank deposits at around 80% of money in the economy and notes and coins at about 3%, with the rest held as reserves at the Bank of England.

OCR J205/01 6-mark 'Evaluate' questions (asterisked extended responses) are marked in three levels, each descriptor describing the top of the level: Level 1 (1-2 marks) has little or no application, limited analysis and "Limited evaluation" with unsupported statements; Level 2 (3-4) has good application, limited analysis and reasonable evaluation where "There may be a judgement, but this will not be fully supported"; Level 3 (5-6) has good application, reasonable analysis and good evaluation "with a fully supported judgement".

As a store of value, money lets people hold wealth over time to spend later.

As a unit of account, money provides a common measure of value, so the prices of different goods can be compared.

Externalities

positive or negative side effects of an economic activity on third parties who are not directly involved in the transaction.

Market failure

a situation where free markets fail to allocate scarce resources efficiently.

Because externality costs and benefits are not reflected in the market price, goods with negative externalities are overproduced and goods with positive externalities are underproduced.

Demerit goods like cigarettes and junk food are overconsumed and overproduced in a market economy.

Examples of negative externalities include factory pollution, traffic congestion and late-night noise from a nightclub disturbing residents.

Examples of positive externalities include vaccination (which reduces the spread of illness to others), education and public parks.

Government may force producers to provide accurate information through labelling, and may run public campaigns to improve knowledge.

Information failure exists when some, or all, of the participants in an economic exchange do not have perfect knowledge.

Government policies to correct externalities include taxation and subsidies, state provision, legislation and regulation, and information provision.

Merit goods like education and health services are under-consumed and under-produced in a market economy, because consumers underestimate their benefits (information failure).

Market imperfections such as monopolies can also cause free markets to allocate resources in a socially undesirable way.

AQA 8136 9-mark 'assess' questions are marked in three levels: Level 1 (1-3 marks) is "A basic conclusion or assertion" with judgements supported by little or no evidence and "no chain of reasoning attempted"; Level 2 (4-6) is "A partially justified conclusion" with an incomplete analysis that "starts to develop a chain of reasoning"; Level 3 (7-9) is "A fully justified conclusion with sustained evaluation" and "a well-developed and logical chain of reasoning".

A negative externality imposes a cost on third parties who are not involved in the transaction, for which no compensation is paid.

Negative externalities cause social costs to exceed private costs.

With a negative externality the market price does not reflect the true social cost, leading to overproduction or overconsumption.

A positive externality creates a benefit for third parties who are not directly involved in the transaction.

Both production and consumption can lead to negative externalities.

Public goods such as street lights and defence may not be provided by private producers, because it is hard to exclude non-payers, making them unprofitable.

Social benefit = private benefit + external benefit.

Social cost = private cost + external cost.

With a positive externality the benefit to others is ignored, leading to underproduction or underconsumption.