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The Price Mechanism

Exam code: 2281
Written by: Ashika|Reviewed by: Caroline Carroll|Updated 2 July 2026

Understanding the price mechanism

Understanding the price mechanism

What is the price mechanism?

  • The price mechanism is where the forces of demand and supply determine the prices of goods and services in a market economy

    • The price mechanism ensures that scarce resources are allocated efficiently in competitive markets

  • Prices act as signals and incentives that help answer the three fundamental economic questions:

1. What to produce?

  • Producers observe prices in the market to decide which goods and services are most profitable to supply

    • If the price of electric vehicles rises, it signals strong demand and potential profit

    • In response, firms are incentivised to produce more electric vehicles instead of petrol cars

2. How to produce?

  • Firms choose the most cost-effective method of production based on prices of inputs (labour, machinery, raw materials)

    • If wages rise, firms may substitute labour with machines to lower costs

    • If fuel prices fall, they might use more energy-intensive methods

3. For whom to produce?

  • Goods and services are produced for those willing and able to pay based on consumer purchasing power

    • If higher-income consumers demand more luxury goods, producers will respond to that market segment

    • This means that income distribution in the economy affects who gets access to goods