
b. 1950
Cristina Bicchieri is an Italian-American philosopher and behavioral scientist known for her work on social norms, game theory, and rational choice. She has developed influential accounts of how norms emerge, persist, and change, bridging philosophy, economics, and psychology.
Developed a theory of social norms grounded in conditional preferences and empirical expectations
Authored The Grammar of Society (2006) and Norms in the Wild (2016)
Advanced the epistemic foundations of game theory, including work on backward induction and common knowledge of rationality
Founded the Behavioral Ethics Lab at the University of Pennsylvania
Applied norm theory to policy interventions addressing harmful practices such as open defecation and child marriage