Is a French economist of Sephardi Jewish descent. He currently is a Professor of Economics at the Institut d'Études Politiques de Paris, where he has taught since 1982. Fitoussi served as President of the Observatoire Français des Conjonctures Econoniques, an institute dedicated to economic research and forecasting, from 1989 to 2010.
His research interests includes inflation, unemployment, and the role of macroeconomic policy.
Starting from academic year 2010/11, he will teach in the first English taught Master Degree Course in International Relations at LUISS.