Best Young Economist of France 2020

Isabelle Méjean, Professor at the Ecole Polytechnique, and Researcher Affiliated to CREST, CEPR and the Institute of Public Policies.

See the laureate's interview See Le Monde's file

Isabelle Méjean, 39 years old, professor at the Ecole Polytechnique, is the winner of the 2020 Prize.

The jury of the Prize, composed of members of the Cercle des économistes and the editorial board of the newspaper Le Monde, after examining the various applications, awarded the 2020 Prize to Isabelle Méjean.

Aged 39, Isabelle Méjean is a professor at the Ecole Polytechnique, after having been attached to the CEPII, then to the IMF. She defended her thesis at the Paris School of Economics in 2006 and is currently a researcher affiliated to CREST, CEPR and the Institute of Public Policies. Her work is published in leading international academic journals (Econometrica, American Economic Review etc…) and is at the intersection of the theories of international trade and international macroeconomics. She is interested in the effects of microeconomic production structures on the macroeconomic equilibrium and the impact of firm-to-firm networks on international markets by mobilising very finely disaggregated databases that make it possible to account for the strong heterogeneity of the firms involved in the global market.

She succeeds Stefanie Stantcheva, and other economists who won the Prize at the beginning of their careers, and who today are recognised in academic and economic circles: Esther Duflo, 2019 Nobel Prize in Economics, Thomas Piketty, Professor at the Paris School of Economics, Philippe Martin, President of the Prime Minister’s Council for Economic Analysis, Agnès Bénassy-Quéré, Professor at the University Paris 1 Panthéon-Sorbonne and Chief economist of French Treasury .

The 3 nominees (ex aequo) of this year :


Virgile CHASSAGNON, 38 years old, Professor at the University of Grenoble-Alpes and founding director of the Research Institute for the Political Economy of Enterprise (Lyon).








Xavier JAVAREL, 31 years old, Assistant Professor at the London School of Economics and Associate Researcher at the Collège de France








Eric MONNET, 37 years old, Director of Studies at EHESS and Affiliated Researcher at the Paris School of Economics and the CEPR.

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