Group Boycott Law and Legal Definition

Group boycott refers to an agreed-upon refusal by competitors to deal with another business unless it refrains from dealing with a potential competitor trying to enter the market. It is a form of refusal to deal. It can be a method of shutting a competitor out of a market, or preventing entry of a new firm into a market. In the United States, such conduct violates the Sherman Antitrust Act. It may also be considered a form of civil conspiracy.