DuopolyA duopoly is a form of oligopoly where only two producers are present in a given market. In the field of industrial organization, it is most commonly studied form of oligopoly due its simplicity. Modern American politics has been described as a duopoly since the Republican and Democratic parties have dominated and framed policy debate. They have shaped, by default, matters of national concern for about a century and a half. See List of political parties in the United States for a more comprehensive look at the politics of the Two-party system, Duverger's law. The term is also used in the broadcast television and radio industry, referring to a single company owning two outlets in the same city. In the United States, this has been frowned upon when using public airwaves, as it gives too much influence to one company. This politics-related article is a . You can AskFactMaster.Com by expanding it (http://www.askfactmaster.com/Duopoly).
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