The paper said that after an AI tool was implemented at a large materials-science lab, researchers discovered significantly more materials—a result that suggested that, in certain settings, AI could substantially improve worker productivity. That paper, by Aidan Toner-Rodgers, was covered by The Wall Street Journal and other media outlets.

The paper was championed by MIT economists Daron Acemoglu, who won the 2024 economics Nobel, and David Autor.

In a press release, MIT said it “has no confidence in the provenance, reliability or validity of the data and has no confidence in the veracity of the research contained in the paper.”

The university said the author of the paper is no longer at MIT.