'can be decisive for' is a correct and usable phrase in written English.
You can use it to describe the importance or effect of a given action or decision. For example, "The decision to invest in new technology can be decisive for the company's long-term success."
Our investigation exemplarily demonstrates that smallest additions of solutes can be decisive for understanding fracture behavior on the macroscale.
As elite cyclist time trials are often won based on seconds or sometimes even less, these differences can be decisive for who wins the stage.
A better understanding of these issues is also highly relevant to optimize their processing and, thus, their elucidation can be decisive for their final industrial application.
"One player on his own can't win a game but he can be decisive for winning matches, and Zlatan is that player for Sweden, he can do those extra things.
The test is currently used, in particular when tumor grade information can be decisive for prescribing a chemotherapy.
Translation is part of the explanation for the lack of evidence for lean, and translation can be decisive for outcomes.
The patients' precocious identification with risk factors and the care at the moment of discharge for UTI can be decisive to reduce the readmission rates.
Rudolph W. Giuliani, who developed a national reputation for decisive and reassuring leadership after 9/11, now faces the odd challenge of having to reassure some supporters that he can be decisive about a very different issue: running for president.
But the political implications of the debate are far-reaching -- not just for a closely divided House, where a candidate's commitment to older Americans can be decisive in a midterm election, but also for the Senate.
In fact, for every problem, any tag or tag combination can be decisive in helping a developer to produce an adequate fix.
