The phrase "a study argues" is correct and usable in written English.
It can be used when referring to the conclusions or claims made by a research study.
Example: "In recent research, a study argues that regular exercise can significantly improve mental health."
Alternatives: "a study claims" or "a study suggests".
A bit later the World Bank released a study arguing that cashew-processing in Mozambique lost money.
Earlier this year he commissioned a study arguing that the Netherlands would be better off returning to the guilder.
The November digest, for example, summarizes a study arguing that inequality is less severe than it sometimes seems and another documenting a benefit of a flat tax.
In 2007, the Heritage Foundation released a study arguing that granting citizenship to currently undocumented immigrants would be an enormous financial burden on the American taxpayer.
To their delight, on November 30th the Pentagon released a study arguing that it would be perfectly feasible to allow openly gay soldiers in the ranks.
Just last month, the Mayo Clinic Proceedings published a study arguing that the results of national dietary surveys, such as those that link sugary drinks to type-2 diabetes, are so flawed that they constitute a major misuse of public funds.
In 2007 she published a study arguing that the uptake of carbon in the Southern Ocean had levelled out.Again, climate was the reason, but this time suspicion fell on a human-induced change.
In 2011, two leading nutrition and diabetes experts in Australia created controversy when they published a study arguing that at the same time obesity rates soared, the consumption of refined sugar in Australia had appeared to fall substantially.
"The United States is losing its leading competitive position," a private-sector commission on capital markets said in a November report, and last week Mayor Michael Bloomberg and Senator Charles Schumer released a study arguing that New York City's financial dominance was being eroded, thus putting tens of billions of dollars and tens of thousands of jobs at risk.
