"diminish competition" is a valid and usable phrase in written English.
It means to reduce or lessen the level of competition. Example: The new regulations are expected to diminish competition in the market, giving the company a monopoly over the industry.
Nasdaq argues that the tie-up will not diminish competition since there is no competition.
Hoarding both functions confers monopolistic power to rig the market and to diminish competition.
The say the change would encourage, rather than diminish, competition and say the claim that it would force price rises is a "furphy".
The union was formally proposed but was rejected in 1979 by the Civil Aeronautics Board, on the ground that it would diminish competition.
"If Omnicare is allowed to purchase its biggest and only national competitor, it will diminish competition and raise health care costs — leaving taxpayers and patients to foot the bill," Richard Feinstein, the F.T.C.'s competition director, said in a statement.
According to several people briefed on the investigation, the F.T.C. has been leaning toward opposing the deal, reasoning that it would substantially diminish competition in the nascent market for advertising on mobile phones.
The agreements to curb cold-calling of each others' workers, the Justice Department complaint said, "diminished competition to the detriment of the affected employees who were likely deprived of competitively important information and access to better job opportunities".
That implies, in turn diminished competition, higher banking costs for businesses and increased systemwide risk.
They also fear that the influence of former officials diminishes competition and hurts consumers.
Such preferential treatment diminishes competition and innovation and therefore reduces economic efficiency.
Unlike the participants in other big mergers, the accountancy firms have offered no concessions to ease concerns about diminished competition.
