The phrase "level of rivalry" is grammatically correct and can be used in written English.
It refers to the degree or intensity of competition or conflict between individuals, groups, or companies. Example: The level of rivalry between the two companies was high, as they both fought for the same market share.
The level of rivalry reportedly led to cheers in the Standard's newsroom when staff heard of their rival's demise last week.
"There's a heightened level of rivalry when it comes to dressing your baby," observed Jill Sorkin, the buyer of infant and toddler styles at Bergdorf Goodman.
'It's the same level of rivalry that she had with Liz Tilberis,' says a fashion insider, 'only this time it's harder for Anna because Kate knows her game plan.
It starred Florence Henderson and Robert Reed as clean-cut newlyweds with children whose most serious problems were usually on the level of sibling rivalry or a student council election.
This qualitatively different effect of eye movements and the quantitative differences with voluntary control and stimulus timing are consistent with the idea that binocular rivalry is a more low-level type of rivalry than perceptual rivalry [5], [6], [9], [29].
The relation between levels is not one of rivalry, such that the physical might exclude the mental, but one of cooperation.
Martin did not realize the level of hostility surrounding the rivalry until he got to New England.
Like the other home nations they create an intense sense of rivalry against the English, calling upon an extra level of passion and patriotism.
Recently, it has been proposed that several levels within the visual system may contribute to the process of rivalry [15], [17], [43].
Pearson et al. (2008) also showed that the higher the level of background luminance during the binocular rivalry task, the weaker the effect of imagery on subsequent perception.
Nobody in their right mind would endorse some of the behaviour of Alex Higgins, a man who escalated his rivalries to the level of terrorism - he once threatened to have fellow Northern Irishman Dennis Taylor shot.
