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Isabelle Méjean is a professor at the Centre for Research in Economics and Statistics (CREST: a joint research unit of CNRS, ENSAE Paris, École Polytechnique - Institut Polytechnique de Paris, GENES). Head of the economics department at the Institut polytechnique de Paris, she is the winner of the prize for the best young economist of France 2020 (Le Cercle des économistes - Le Monde).