Information Asymmetry
Monopolies of Knowledge
The study of decisions in transactions where one party has more or better information than the other. This asymmetry creates an imbalance of power in transactions, which can sometimes cause the transactions to go awry, a kind of market failure in the worst case.
EverydayConcepts.io
Origin
Introduced by economist George Akerlof in his 1970 paper The Market for Lemons, which showed how sellers’ superior knowledge about used car quality drives good cars out of the market. The insight — that unequal information distorts transactions — earned Akerlof, Michael Spence, and Joseph Stiglitz the 2001 Nobel Prize in Economics and shaped thinking on everything from insurance to healthcare to financial regulation.
Updated February 22, 2026