Sacha Bourgeois-Gironde is Professor of Economics at Université Paris 2. He is an experimental economist working on the cognitive foundations of decision-theory. Before his career in economic sciences, he has been a full professor of philosophy and continues to be a researcher in cognitive sciences at Ecole Normale Supérieure, in Paris. The leading thread of his work is to spell out and model minimal cognitive conditions which are compatible with decision-making in complex human economic environments.