The phrase "suppress competition" is correct and usable in written English.
You can use it to refer to when someone or something actively prevents or limits competition. For example, "The government's new regulations suppress competition by making it harder for new businesses to enter the market."
Some grew strong enough to control commerce, suppress competition and manipulate prices.
He accused the insurance company Marsh & McLennan of publishing fictitious quotes to suppress competition.
The FTC alleged that Intel had unfairly tried to suppress competition for about 10 years.
I.B.M. admitted it was a monopoly but argued that its actions were legal and did not suppress competition.
German regulators were accused of setting rules that allowed the larger operators to use their superior financial resources to suppress competition.
Still, the settlement and the increased oversight that comes with it offer a fair chance that Intel won't be able to suppress competition in the future.
Suppressing competition arguably suppresses turnout.
We should recognise by now that regulation introduces moral hazard, raises costs, and suppresses competition and innovation, but doesn't actually prevent risk-taking or failure.
It also makes administration, cost calculations and information systems needlessly complex and expensive.More important, the government suppresses competition through the tax code.
The owner of a company that provides tablecloths, chefs' uniforms and other linens to New York City restaurants pleaded guilty yesterday to federal charges of suppressing competition by dividing up customers with other linen supply companies.
An unlawful violation occurs when a company dominates or attempts to dominate the market for a product or service, but only if it has sought, achieved or maintained that dominance by suppressing competition with anticompetitive conduct.
