Sacha Bourgeois-Gironde is Professor of Economics and Cognitive Sciences at University Paris 2 (Sorbonne Universités) and affiliated with the Institut Jean Nicod Faculty located at Pavillon Jardin, 29 rue d'Ulm, Paris. His research spans multiple disciplines at the intersection of economics, cognitive science, and neuroscience, focusing on the psycho-biological bases of economic behaviors and cognition. He investigates the temporal and functional lag between the evolution of neurobiological mechanisms that supported adaptation to modern economic environments and the nature and demands of these environments. His primary research interests include experimental economics, economic cognition, neuroeconomics, decision theory, and money studies. Bourgeois-Gironde examines how recent formal advances in decision theory (such as incomplete preferences, second-order subjective probability, and temporal extension of static decision models under uncertainty) can inform psychology and inspire new experimental paradigms. His work also explores how limited cognitive systems adapt to complex decision environments and create social artifacts to overcome adaptive difficulties, with particular focus on money as a case study. Analysis of his recent publications reveals a strong interdisciplinary research program bridging economics, neuroscience, and cognitive psychology. His work consistently explores decision-making processes across species (including human and non-human primates), examining fundamental economic behaviors from both theoretical and experimental perspectives. Key thematic threads include the neural basis of economic decisions, the evolutionary foundations of economic behavior, the psychology of money, and the application of decision theory to complex social phenomena. Bourgeois-Gironde has contributed significantly to understanding interference between low-level cognitive processes (perception, number and magnitude processing) and decision-making, incomplete preferences and indecisiveness, decision-theoretical paradoxes in non-human subjects as biological markers of rationality, search-theoretical models of money emergence, and folk economic cognition related to cycles, crises, life-cycles, and existential anticipations. His research combines experimental, theoretical, and comparative approaches to address fundamental questions about economic behavior and cognition.










