I am a historian of economics. I am a CNRS researcher, affiliated with CREST, and an associate professor at Ecole Polytechnique (where I teach controversies in the history of 20th century economics, the history of applied economics, and the history of economists facing nature). I work on the history of applied economics in the 20th century, which includes researching the history of several fields (macroeconomics, public economics, urban economics, etc), as well as various efforts to make economic models tractable, the consequences of the rise of the computer on economists' practices, and whether the development of applied practices transformed the status of women in the discipline.