The study was conducted by the N.C. Department of Revenue.
The Lee Act, which allows N.C. businesses to qualify for tax incentives in order to create more jobs and increase company revenue, currently is being revised by the N.C. General Assembly.
The Senate has already made revisions, but more changes are anticipated when it goes before the House next week.
"We feel revisions will sail right through the House and will be passed without much debate," said Greg Sampson, author of the study.
Sampson's study attempted to explain the act's implications as a cost-benefit analysis.
"The evidence is not compelling on any number of features within the act. The benefits are not outweighing the costs," he said.
Sampson said metropolitan areas are receiving a greater amount of incentives than rural counties.
"There is a clear bias between incentives to poor counties and large cities," he said. "The benefits are going to the areas that least need them."
But Sampson's goal still remains the same. "We are taking existing data and attempting to ask hard questions about how the act needs to be revised," he said.