The role of markets in allocating resources
Introduced| English | Meaning |
|---|---|
| market economy/ˈmɑːkɪt ɪˈkɒnəmi/ | An economy in which prices and resource allocation are largely determined by buyers and sellers through markets. |
| market/ˈmɑːkɪt/ | An arrangement through which buyers and sellers exchange goods or services. |
| buyers/ˈbaɪəz/ | buyers |
| sellers/ˈseləz/ | sellers |
| price mechanism/praɪs ˈmekənɪzəm/ | The way prices signal scarcity and influence the allocation of resources through demand and supply. |
| signals/ˈsɪɡnlz/ | Information, such as price changes, that guides decisions about buying, selling and allocating resources. |
| incentive/ɪnˈsentɪv/ | A reward, penalty or other influence that encourages a particular action or choice. |
| ration/ˈræʃn/ | ration |
Who decides what gets made?
- No one orders the world's farmers to grow exactly enough bread, yet supermarket shelves are full each morning.
- In a market economy 市场经济, prices do the organising — quietly steering resources to where they are wanted.
A market is best defined as:
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A market is any arrangement bringing buyers and sellers together.
What a market 市场 is
- A market is any place or system where buyers 买方 and sellers 卖方 meet to trade.
- It need not be a physical place — online shops, stock exchanges and job markets all count.

A stock exchange is one kind of market — buyers and sellers meet and prices are set by demand and supply
How markets allocate resources
Price moves to where demand meets supply. That equilibrium price signals firms what to produce and rations goods to buyers.
A rising price signals producers to:
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Higher prices act as an incentive to supply more.
Prices ration scarce goods to those willing and able to pay.
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Rationing is one of the key functions of the price mechanism.
The system by which prices allocate resources is the price ______.
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The price mechanism signals, incentivises and rations.
The price mechanism 价格机制
- Prices send signals 信号: a high price says "make more"; a low price says "make less".
- Prices act as an incentive 激励 and they ration 配给 scarce goods to those willing to pay.
Worked example. A bad harvest cuts the coffee supply. The price rises, which rations the smaller crop and signals farmers to plant more next year. No central planner is needed.
Match each question to how a market answers it.
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Prices and profit coordinate the three questions.
Answering the three questions
- What to produce → whatever consumers will pay for.
- How to produce → the cheapest method, to maximise profit.
- For whom → those with the income and willingness to buy.
You've got it
- a market is where buyers and sellers trade (not always a physical place)
- the price mechanism signals, incentivises and rations
- markets answer what, how, for whom through prices and profit