One study found that

[ASMAA997]

One study found that although government policy and the industrial sector in which a company operates can influence its productivity and financial strength, management decisions have at least as great an impact on a company’s performance.

this question appears in SC questions, and the right answer is the same as the underlined in question.
My question is , ( at least as great an ) is it a right phrase ?

for comparison we used to write ( as ... as )

may anyone explains this for me please ?

[yangl787]

https://www.manhattanprep.com/gmat/foru ... icy#p30451

Ron's answer, hope it help

[RonPurewal]

thanks for the link.