duopoly
UK[djuːˈɒpəli]US[duːˈɑːpəli]
n
a situation in which two companies or groups control all or nearly all of the business of a particular kind.
Morpheme Breakdown
duo
poly
duo
two
poly
seller
Etymology
the term duopoly is a modern economic compound, directly constructed from classical roots to describe a specific market structure. it combines the latin numeral 'duo', meaning two, with the greek root derived from 'pōlein', meaning to sell. this hybrid formation follows a pattern similar to the older word monopoly, which uses the greek 'monos' (alone) plus 'pōlein'. literally, duopoly translates to 'two sellers', a transparent description of a market dominated by two primary suppliers. the word entered english in the early 20th century as economists required precise terminology to categorize and analyze different competitive market conditions beyond the classical concept of a single-seller monopoly.
Analysis
Structure: duo (two) + poly (seller)
duo: from latin 'duo', meaning 'two'. functions as a numerical prefix.
poly: from greek 'pōlein', meaning 'to sell'. functions as a combining form denoting a seller or dealer.
Examples
the telecommunications industry in the country is effectively a duopoly controlled by two giant corporations.
critics argue that the duopoly in the operating system market stifles innovation and keeps prices high.
the airline route was served by a duopoly, with only two carriers offering direct flights.