Contestable market

In economics, the theory of contestable markets, associated primarily with its 1982 proponent William J. Baumol, holds that there are markets served by a small number of firms that are nevertheless characterized by competitive equilibria (and therefore desirable welfare outcomes) because of the existence of potential short-term entrants. In economics, the theory of contestable markets, associated primarily with its 1982 proponent William J. Baumol, holds that there are markets served by a small number of firms that are nevertheless characterized by competitive equilibria (and therefore desirable welfare outcomes) because of the existence of potential short-term entrants.