Definition
The Cantillon effect describes how newly created money does not raise all prices at the same time, so the order in which it enters the economy produces winners and losers. Named after the 18th-century economist Richard Cantillon, who illustrated it in his Essai sur la Nature du Commerce en General, the effect explains why monetary expansion can redistribute purchasing power even before overall inflation becomes visible.
How the effect works
When new money enters circulation, the parties who receive it first can spend it at existing prices, before the added supply has pushed prices up. Cantillon's own example was a new gold mine: the mine owners and merchants who handle the gold first grow richer by spending it at yesterday's prices, while by the time it reaches farmers, laborers, and pensioners, prices have already risen. The early recipients gain relative purchasing power; the late recipients face higher prices without a corresponding early boost to their income.
Why it appears in monetary debates
The concept is frequently invoked in discussions of central-bank policy and quantitative easing, where new money typically enters through financial institutions and government channels first. It is offered as a neutral structural observation about how money propagates, not a claim about intent. The effect is also a common talking point in fiat currency critiques, since a fixed-supply money has no new issuance to distribute unevenly in this way.
The Cantillon effect helps explain why the design of a money its issuance schedule and who receives new units matters beyond the headline inflation rate. For related context, see sound money and fiat currency.
In Simple Terms
The Cantillon effect describes how newly created money does not raise all prices at the same time, so the order in which it enters the…