单词	duopoly
释义	duopoly /djuːˈɒpəli / noun (plural duopolies) A situation in which two suppliers dominate the market for a commodity or service.Now, most markets are cozy duopolies, at best, where consumers can get broadband only from a phone or cable company.... However, many companies will build on top of the older technologies, and many incumbent monopolies or duopolies have introduced cell services or have seamless links between the mobile and fixed systems. Nevertheless, particularly in the case of a duopoly, a large market share is, in the absence of evidence to the contrary, likewise a strong indication of the existence of a dominant position. Derivatives duopolistic adjective ... While it is in a duopolistic domestic railroad market, its market power was severely constrained by cross-border substitutes in the United States and by domestic substitutes such as trucking and shipping. If you had told me 30 years ago that in the United States in the year 2004, no female presidential candidate had ever been nominated by either of the duopolistic parties I would not have believed you. Unsurprisingly, big, politically painful structural changes, such as ending the cable franchise system, which reduces land line competition to a duopolistic farce, are nowhere in sight. Origin 1920s: from duo-, on the pattern of monopoly.
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