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What is Perfect competition?

Perfect competition: Many sellers offering identical products, so none can set the price.

Where Perfect competition fits

Perfect competition is part of Market Structures in Economics. Markets set prices through supply and demand. Structures run from perfect competition to monopoly, and externalities or public goods are where markets alone fall short.

Practical tip

Ask how many sellers exist and how easily new ones can enter.

Related terms

Supply and demand
The interaction that sets market prices.
Monopoly
One seller controls the whole market.
Oligopoly
A few large firms dominate a market.
Externality
A cost or benefit that lands on people outside the deal.
Public good
A good everyone can use and nobody can be excluded from.
Price floor
A legal minimum price.
Natural monopoly
A market best served by one firm because of high costs.
Market equilibrium
The point where supply equals demand.

Formulas you will use with it

Consumer surplusProducer surplusTrade balance

Test yourself

Which term means: “Many sellers offering identical products, so none can set the price.”?

Natural monopoly · Perfect competition · Oligopoly

Answer: Perfect competition

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