In economics, a monopsony (from Ancient Greek μόνος (mónos) "single" + ὀψωνία (opsōnía) "purchase") is a market form in which only one buyer faces many sellers. It is an example of imperfect competition, similar to a monopoly, in which only one seller faces many buyers. As the only purchaser of a good or service, the monopsonist may dictate terms to its suppliers in the same manner that a monopolist controls the market for its buyers.

Read more about Monopsony:  Etymology, Examples, Overview, Static Monopsony in A Labor Market, Dynamic Problems, Empirical Problems, Public Administration and Product Markets