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Theme 1: Introduction to markets and market failure
1.1: Nature of economics
1.1.1 - Economics as a social scienceEconomics explores how households, firms, and governments make decisions, and how those decisions affect one another. Because the real world is messy, economists cannot analyse every influence at once. They use models and assumptions to simplify reality first, then test whether those simplificati...
1.1.2 - Positive and normative economic statementsEconomics tries to explain how the world works, but it also gets drawn into arguments about what governments and societies should do next. That is why economists separate statements about facts from statements about opinions and values. If you can keep that distinction clear, you will be much les...
1.1.3 - The economic problemEconomics begins with a constraint. People have more wants than can ever be fully satisfied, but the resources used to produce goods and services are limited. That gap between unlimited wants and finite resources is why every economy has to make choices, accept trade-offs, and think about what is...
1.1.4 - Production possibility frontiersProduction possibility frontiers, or PPFs, are one of the most useful models in economics because they bring several core ideas together on one diagram. A PPF helps you explain scarcity, efficiency, opportunity cost, and growth, but the key skill is reading the diagram accurately: a movement alon...
1.1.5 - Specialisation and the division of labourAdam Smith's famous pin factory example captures a core economic idea: output rises sharply when production is split into specialist tasks and people can trade for the rest of what they need. That logic matters inside factories, across whole economies, and in understanding why money is so importa...
1.1.6 - Free market economies, mixed economy and command economyEvery society faces the same basic problem of scarcity, so every society has to answer three economic questions: what to produce, how to produce, and for whom to produce. Different economic systems answer those questions in different ways. This lesson compares free market, command, and mixed econ...
1.2: How markets work
1.2.1 - Rational decision makingEconomics often starts with simplified assumptions so behaviour can be analysed clearly. One of the most important is that consumers and firms make rational decisions: they compare costs and benefits and choose the option that best meets their objective. This does not mean every real-life choice...
1.2.2 - DemandDemand is central to understanding how markets work because economists care not just about what consumers want, but what they are both willing and able to buy. In this lesson, the key exam skill is to separate changes in a good's own price from the non-price factors that shift demand, and then li...
1.2.3 - Price, income and cross elasticities of demandElasticity of demand measures how strongly quantity demanded responds when a key variable changes. In this topic, the key variables are the good's own price, consumer income, and the prices of related goods. These ideas matter because they help firms predict revenue, help governments judge the ef...
1.2.4 - SupplySupply is the producer side of the market. To use supply analysis properly, you need to know what firms are prepared to sell at different prices, why supply curves usually slope upward, and which changes alter quantity supplied rather than supply itself.
1.2.5 - Elasticity of supplyDemand is only half of the market story. When price changes, producers do not all respond by the same amount. Some firms can raise output quickly, while others are limited by time, capacity, stocks, or the difficulty of bringing in new resources. Elasticity of supply helps explain that difference.
1.2.6 - Price determinationIn a market economy, prices do not usually need to be set by a central planner. They emerge from the interaction of demand and supply. This lesson explains how equilibrium is determined, why shortages and surpluses push price back toward equilibrium, and how changes in demand or supply create a n...
1.2.7 - Price mechanismIn a market economy, no central planner has to tell every firm what to produce or every consumer what to buy. Instead, prices change as demand and supply change. Those price changes help allocate scarce resources by rationing limited output, signalling what has changed in the market, and creating...
1.2.8 - Consumer and producer surplusConsumer and producer surplus measure the extra benefit created when a market exchange takes place. They help economists move beyond "price went up" or "price fell" and ask a better question: who gained, who lost, and what happened to total welfare?
1.2.9 - Indirect taxes and subsidiesGovernments do not always leave markets alone. They may want to raise revenue, reduce consumption of harmful goods, support domestic production, or make useful goods more affordable. Indirect taxes and subsidies both work through supply and demand, so the key exam skill is to track what happens t...
1.2.10 - Alternative views of consumer behaviourThe standard consumer model gives economists a useful starting point, but real people do not always make calm, fully calculated choices. Behavioural economics helps explain why actual consumer behaviour can differ from the rational benchmark, while still keeping the core economic logic clear.
1.3: Market failure
1.3.1 - Types of market failureMarkets often coordinate resources well through prices, profit, and consumer choice. However, a free market outcome is not automatically the best outcome for society. If prices leave out some wider costs or benefits, the market can produce the wrong quantity and social welfare is lost.
1.3.2 - ExternalitiesMarkets work efficiently only when prices reflect the full costs and benefits of what is being produced and consumed. Externalities matter because some effects spill over onto people outside the transaction, so the free market can settle at an output that is not best for society.
1.3.3 - Public goodsSome goods create very large benefits for society but are difficult to supply through ordinary market exchange. The key issue is not whether the good is useful. The key issue is whether people can be excluded from benefiting, and whether one person's use reduces what is left for everyone else.
1.3.4 - Information gapsMarkets work best when buyers and sellers can judge quality, risk, costs, and benefits reasonably accurately. In reality, information is often incomplete, unequal, or distorted. That means people can make choices that seem sensible at the time but still lead to too much or too little consumption,...
Theme 2: The UK economy - performance and policies
2.1: Measures of economic performance
2.2: Aggregate demand (AD)
2.3: Aggregate supply (AS)
2.4: National income
2.5: Economic growth
2.6: Macroeconomic objectives and policies
Theme 3: Business behaviour and the labour market
3.1: Business growth
3.2: Business objectives
3.3: Revenues, costs and profits
3.4: Market structures
3.5: Labour market
3.6: Government intervention
Theme 4: A global perspective
4.1: International economics
4.2: Poverty and inequality
4.3: Emerging and developing economies
4.4: The financial sector
4.5: Role of the state in the macroeconomy