728 B
728 B
Double Coincidence of Wants
Definition
The requirement in barter systems that each party to an exchange must simultaneously possess exactly what the other party desires, creating a significant barrier to trade when such matching preferences cannot be found.
Source Chapter
Book I, Chapter 4
Context
Smith identifies this as the primary limitation of barter systems, where a butcher with meat cannot exchange with a brewer who has beer if neither desires the other's product, demonstrating why money becomes necessary for efficient commercial exchange.
Economic Domain
Exchange