Economic systems differ in how markets and government allocate resources.
Must know
- Markets use decentralised price signals.
- Command systems rely more on central decisions.
- Mixed economies combine both mechanisms.
Must know definitions
Free market economy (laissez-faire): resources allocated entirely by market forces of demand and supply, with no government intervention.
Mixed economy: resources allocated partly by markets and partly by government; most economies today.
Command economy: resources allocated entirely by the government, with no markets, e.g. North Korea.
Efficiency: using resources in the best possible way to meet the needs and wants of consumers.
Equity: fairness in the distribution of income and wealth.
Market failure: when markets allocate resources inefficiently, for example underprovision of public goods or overconsumption of demerit goods.
Public good: a non-rival, non-excludable good that markets tend to underprovide because charging beneficiaries is difficult, for example national defence.
Merit good: consumers may underestimate its private benefits, causing underconsumption. It may also generate external benefits, for example education.
Demerit good: consumers may underestimate its private harm, causing overconsumption. It may also generate external costs, for example tobacco.
Explain and apply
Mechanism in brief: Prices convey scarcity and provide incentives, while government can finance services and correct failures. Both systems face information problems, so compare how each responds to the specific allocation problem.
Distinguish: A mixed economy is not a fixed fifty-fifty split; government provision does not make every service a public good.
Use the extract: Identify who makes allocation decisions, who pays and who can access the good; use these details to judge outcomes.
Free market, mixed and command economies
An economic system is the way a society organises the allocation of scarce resources to meet needs and wants.
- The three systems differ in how much allocation is left to markets versus decided by government, ranging from no intervention (free market) to full intervention (command).
- Free market economies are also known as laissez-faire economies.
- Adam Smith described the "invisible hand" of the price mechanism, where prices act as "spending votes" by consumers, guiding resources to where they are most valued without any central planner.
no real economy is purely free market or purely command — almost all are mixed, differing only in degree.
| System | Resource allocation | Government role | Examples |
|---|---|---|---|
| Free market economy (laissez-faire) | All resources allocated by market forces of demand and supply | None — no intervention | Rare in pure form; Hong Kong often cited as close |
| Mixed economy | Resources allocated partly by markets, partly by government | Moderate — provides some services, taxes, regulates | Most economies today; UK fairly central, US more free-market, Cuba more command |
| Command economy | All resources allocated by the government | Total — no markets exist | Ex-Soviet bloc, North Korea |
Every economic system must answer three key questions — what to produce, how to produce it, and for whom to produce:
| Question | Free market | Command |
|---|---|---|
| What to produce? | Whatever consumers demand ("spending votes") | Whatever the government decides is needed |
| How to produce? | Producers seek the most profitable methods | Government directs production methods |
| For whom to produce? | Those with the greatest purchasing power | Whoever the government decides should receive goods |
Advantages and disadvantages of free market and command economies
Efficiency is using resources in the best possible way to meet the needs and wants of consumers, while equity is fairness in the distribution of income and wealth.
- Competitive markets can allocate resources efficiently when prices reflect all social costs and benefits and information is adequate. Market failures weaken this result.
- Free markets tend to score poorly on equity — owners of capital and entrepreneurs accumulate most income/wealth, while groups such as the sick or elderly, who cannot work, are left behind.
- Command economies can prioritise equity but lack price signals and incentives, so they tend to be inefficient.
efficiency and equity are different objectives — a system can be efficient yet very unfair.
| Free market economy | Command economy | |
|---|---|---|
| Advantages | High efficiency — resources directed by consumer demand; incentives drive innovation and hard work; wide range of consumer choice; no government bureaucracy | Government can prioritise equity and provide for all; can address market failures directly (e.g. provide public goods); avoids extreme inequality |
| Disadvantages | Unequal distribution of income/wealth (poor equity); no social security for low-income groups; risk of monopolies exploiting consumers with higher prices; demerit goods overconsumed (e.g. tobacco, negative externalities); public goods not provided (e.g. national defence); merit goods underprovided (e.g. education) | Inefficient — no price signals, so planners struggle to match production to consumer wants; lack of incentives reduces innovation and effort |
Because pure free markets fail on equity and pure command economies fail on efficiency, almost all economies today are mixed economies, combining market allocation with government intervention.
The role of the state in a mixed economy
In a mixed economy the government intervenes to improve equity and to correct market failure — occasions when the free market fails to allocate resources efficiently.
- Typical failures corrected include under-provision of public goods and the presence of externalities.
The main tool is taxation
revenue is raised and then used to redistribute income and provide services directly.
The state also regulates markets and subsidises merit goods where the market under-provides them.
| Method of intervention | Explanation | Example |
|---|---|---|
| Taxation and redistribution | Government raises revenue through taxes and redistributes it via benefits, to ensure a minimum standard of living | Income tax funding unemployment or disability benefits |
| Direct provision of services | Government provides services itself rather than leaving them to the market | State-funded healthcare (NHS), state education, roads, police |
| Correcting market failure | Government intervenes where markets alone would under- or over-produce | Environmental regulation; provision of public goods (e.g. street lighting, defence); regulation of demerit goods (e.g. tobacco taxes); subsidising merit goods (e.g. education subsidies) |
Choose the arrangement that best addresses the diagnosed failure at acceptable cost. State provision may improve access, but weak accountability can reduce efficiency; market provision can incentivise efficiency while excluding people unable to pay.
Rapid recap
Markets allocate through prices and private decisions; command systems use central decisions; mixed economies combine mechanisms. Ownership alone does not determine efficiency.
Diagram cue: trace who decides → incentives → allocation.
Related chapters: Unit 1 chapter 14 (p. 64) · Unit 1 chapter 17 (p. 90)