Key term

What it means

In an oligopoly, a few firms account for much of a market. Each may pay close attention to what the others charge and offer. They may compete hard on price and quality, or competition may be weak; the small number of firms alone does not settle that question. An oligopoly does not mean the businesses have made an illegal agreement with one another. Check what counts as the market before deciding how many serious competitors there are.

Example

Imagine three companies supplying almost all the broadband connections in a small area. That local market could be an oligopoly if customers have few other usable choices, even if more broadband firms exist elsewhere.

Why it matters

The choices available to customers depend on how those few suppliers compete, and on whether new suppliers can enter.

Related terms

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