"sufficient competition" is a correct and usable phrase in written English.
You can use it to describe a situation where you have just enough competitors to make something interesting or meaningful. For example: "There was just sufficient competition in the race to make it an exciting event."
This seems to imply a lack of sufficient competition.
"The expectation was that by 2003 there would be sufficient competition to keep rates down," Mr. Bagger said.
Real Good Food said: The group suspects that the recent dramatic reduction in sugar prices may have contributed to the CMA believing that the market has sufficient competition.
Unlike with road and rail infrastructure, governments cannot inject money into broadband in areas where there is deemed to be sufficient competition from existing providers.
The F.C.C. order lays out guidelines for the states to determine whether there is sufficient competition in the voice market to loosen regulations.
The market study will consider whether there is transparency over the charges levied on customers, and whether there is sufficient competition in the market.
A sufficient competitive edge to appropriate business strategies can be realised with the aid of modern technology, networking, and alliances rather than competition.
Since this binding experiment was performed with nanomolar concentrations (∼27 nM) of Importin α and Importin β, we next asked whether the amount of protein obtained from in vitro-translation is sufficient for competition experiments.
Indeed, the number of manufacturers is sufficient to create competition in both FDC and loose drug markets, and this competition may encourage manufacturers to differentiate their products by creating large numbers of strength variants.
We believe this can be mitigated with sufficient planning and competition expertise at the start".
Yet it leaves a sufficient degree of competition to encourage better performance.
