"raise competition" is a correct and usable phrase in written English.
You can use it when you want to describe an intensification of competition, for example: "The new plant has raised competition in the automobile industry."
For one thing, they are already so big that further mergers would raise competition concerns.
The companies yesterday admitted that regulators are likely to raise competition issues.
Still, the deal does "not raise competition concerns, in particular because the merged entity will continue to face several strong competitors," the EU Commission said in a statement.
Google just said it would give everyone in the company a 10 percent raise; competition for talent is getting more heated by the day.
In its nonhorizontal merger guidelines, the Commission states that conglomerate mergers — mergers involving complementary rather than overlapping products or services — generally do not raise competition concerns.
Prior to the HBOS announcement, the commission was expected to clear the takeover, because the deal does not appear to raise competition issues over market dominance.
But it raises competition issues – and public policy questions – that are being ignored.
Intel meanwhile is moving in the other direction, raising competition fears for Arm.
Yet it raises competition issues, and F.T.C. investigators have reviewed the court documents and talked to Skyhook's chief executive, Ted Morgan.
Mr. Almunia also said that a settlement in the case did not mean he would not undertake inquiries in other areas that raised competition concerns.
The roughly $600 trillion market is controlled by a small number of players, concentration that has raised competition concerns in recent years.
