He also considered conditions for equilibrium with monopoly, duopoly and perfect competition.
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.
Up until 1990 there was effectively a duopoly in operation.
Well we don't believe it's in the public interest for there to emerge in Australia a duopoly in the liquor industry.
A year later it began flights between Dublin and London, with the end of the duopoly , sparking a massive shakeup of the airline sector.
It's as if perfection is a duopoly of sexual license and sexual commitment and nobody's perfect.
Many of these figures, concerned about the cultural protectionism of the duopoly , saw the need for a ‘third force’ in broadcasting in the 1970s.
In the duopoly that has resulted, the big two have a vice-like grip on the sector, having a combined market share of 96 per cent.
By breaking up the cozy duopoly , Congress could make the GSEs compete more for mortgages - and ensure that risk is spread more widely.
But sense prevailed and a comfortable duopoly closed in on Sydney newspaper readers.