Oligopoly

A market structure in which a few firms dominate.

Educational content only. This page does not provide investment, legal, or regulatory advice.

Why it matters

Oligopoly matters because it affects financial interpretation, product decisions, and industry communication.

Oligopoly is commonly explained through its core definition and the practical example used in the glossary.

A common mistake is to use Oligopoly without understanding its operational and regulatory context.

Oligopoly may vary across payment rails, regulations, and market practices.

Acquirer

Bank processing payments for merchant.

Algorithmic Trading

Trading using automated algorithms.

AML

Anti Money Laundering.

Anti Money Laundering

Laws against clean dirty money.

Arbitrage

Profiting from price differences in markets.

Chargeback

Reversal of a card payment.

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Adyen

Adyen: Payment methods glossary

Reference source for payments terminology clusters.

Author

Founder and multilingual fintech glossary editor

Reviewer

Editorial and source review layer

Reviewed

3/15/2026