What would the antebellum American economy have looked like without slavery? Using new micro-data on the U.S. economy in 1860, we document that where free and enslaved workers live and how much they ...

None of the most widely used large language models (LLMs) that are rapidly upending how humanity is acquiring knowledge has faced independent peer review in a research journal. It’s a notable absence.

It’s working with the US National Hurricane Center to test out its new AI-based tropical cyclone model. It’s working with the US National Hurricane Center to test out its new AI-based tropical cyclone ...