Economic System

Every society faces the three economic questions: WHAT to produce, HOW to produce, FOR WHOM to produce. Different systems answer them differently.

1. Free-market economy.

• Resources allocated by the price mechanism.
• Decisions made by private firms responding to consumer demand.
• Government role minimal — protect property rights, enforce contracts, maintain law and order.
• Examples: Hong Kong, historically Singapore, the USA in early industrial period. (No economy is purely free-market today.)

WHAT? Whatever consumers will pay for — driven by demand. HOW? Whatever maximises profit — usually most efficient methods. FOR WHOM? Those who can pay — incomes determined by labour markets and capital ownership.

2. Command (planned) economy.

• Resources allocated by central government planning.
• Government decides what's produced, in what quantity, by whom.
• Private property and private business limited or banned.
• Examples: Soviet Union (1917-1991), North Korea today, Cuba (significant command elements).

WHAT? Whatever the government plan dictates — often heavy on basics, light on luxuries. HOW? As planned — often less efficient than market methods. FOR WHOM? Often distributed equally (in theory) by ration or by need.

3. Mixed economy.

• Combination of market and command.
• Most resources allocated by markets.
• Government:
  • Provides public goods (defence, education, healthcare).
  • Corrects market failure (taxes negative externalities, subsidises positive ones).
  • Redistributes income (progressive taxes, welfare).
• Examples: UK, USA, Singapore, India, Japan, Germany, China — virtually all real-world economies are mixed, varying only in HOW MUCH the government does.

WHAT? Mostly markets, but government provides what markets won't (public goods). HOW? Mostly profit-motivated firms, with regulation. FOR WHOM? Markets first, then redistribution via tax-and-benefit systems.

Cambridge tip. Mark schemes for "compare the three systems" expect (a) definition of each, (b) at least one strength and weakness of each, (c) at least one country example. Top-band candidates note that no economy is purely market or command — all real economies are mixed, varying in degree.

Strengths of the free market:

1. Allocative efficiency. The price mechanism signals consumer demand — resources flow to where they're most wanted. No central planner can match the market's information-processing ability across millions of decisions.

2. Productive efficiency. Competition pressures firms to lower costs. Inefficient firms lose customers and exit. Average productivity rises.

3. Innovation. Profit motive rewards firms that develop new products or processes. Consumer choice rewards firms that meet demand best.

4. Consumer choice. Markets typically offer wider variety than government planning.

5. Freedom. People are free to choose their work, what to buy, what businesses to start.

Weaknesses of the free market:

1. Market failure. Externalities, public goods, monopoly, information failure — the market does not correct these on its own. Pollution, under-provision of vaccines, monopoly profits all result.

2. Inequality. The market rewards skills, capital, connections, and luck. People without these can be left without basic goods. No 'equity' guarantee.

3. Macroeconomic instability. Free markets generate boom-and-bust cycles — periods of growth followed by recession.

4. Public goods unprovided. Defence, street lighting, lighthouses — the market won't provide these.

5. Volatile prices. Especially in agriculture, prices can swing wildly with weather and demand.

Cambridge tip. Mark schemes for evaluation questions expect BOTH strengths and weaknesses. A one-sided answer caps at the lower bands.

Strengths of the command economy:

1. Provides public goods. Government can prioritise defence, infrastructure, healthcare without free-rider problems.

2. Reduces inequality. Income distribution can be set by plan — equal shares or based on need.

3. Stability. Prices and employment can be planned, avoiding boom-and-bust cycles.

4. Long-term planning. Government can prioritise investments (e.g., heavy industry, education) that markets might not.

Weaknesses of the command economy:

1. Inefficiency. Central planners cannot process the millions of decisions a market does. Goods are produced in wrong quantities — shortages of some, surpluses of others.

2. No incentive to innovate. Without profit motive, firms have little reason to develop new products.

3. No incentive to work hard. If pay is fixed regardless of effort, productivity falls.

4. Lack of consumer choice. Government decides what to produce — variety is often poor.

5. Loss of freedom. Citizens have less choice over jobs, businesses, what to buy.

6. Bureaucratic distortions. Plans can be manipulated to meet quotas without meeting real demand.

Real-world record. Most pure command economies have collapsed (Soviet Union, Eastern bloc) or partially marketised (China since 1978, Vietnam). North Korea remains close to a command economy and has GDP per capita roughly 1/30th of South Korea's.

Cambridge tip. Examiner reports praise candidates who use the historical record (Soviet Union → Russia, Maoist China → modern China) to evaluate command economies.

In a mixed economy, government has several distinct roles:

1. Provide public goods.

The market won't (free-rider problem). Government must.

• National defence.
• Street lighting.
• Lighthouses.
• Public parks.
• Flood defences.

Funded through taxation.

2. Correct market failure.

• Tax negative externalities (carbon tax, cigarette tax).
• Subsidise positive externalities (vaccinations, education).
• Regulate monopolies (anti-trust laws, price caps).
• Provide information (food labelling, health warnings).
• Ban severe demerit goods (illegal drugs).

3. Redistribute income.

• Progressive taxation (higher rates on higher incomes).
• Welfare benefits, unemployment payments, pensions.
• Public healthcare, public education.
• Minimum wage laws.

4. Macroeconomic stabilisation.

(Covered in detail in the macroeconomy unit.)

• Fiscal policy (tax + spending).
• Monetary policy (interest rates).
• Aim: stabilise the business cycle.

5. Provide a legal and institutional framework.

• Property rights, contract law.
• Police, courts, justice system.
• Currency and banking regulation.

The trade-off. More government = more correction of market failure + more redistribution, BUT also more taxation, more bureaucracy, less individual freedom, possibly less innovation.

The political question. How much government? This is the central question in economic policy debate. Different mixed economies vary enormously — Sweden has high taxes and welfare; the USA has lower; Hong Kong has very low. All are mixed.

Cambridge tip. Mark schemes for "explain the role of government" expect 3-5 distinct roles. Memorise: public goods, market failure correction, redistribution, stabilisation, legal framework.