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.
management decisions have at least as great an impact
decisions by management have a great impact
manager decisions impact greatly
decisions by a company’s management impact greatly
what a company’s management decides has a greater impact
Answer explanation mentions about "at least as great an impact". is this ok?