Cristina Bicchieri (born 1950) is an Italian–American philosopher. She is the S.J.P. Harvie Professor of Social Thought and Comparative Ethics in the Philosophy and Psychology Departments at the University of Pennsylvania, professor of Legal Studies in the Wharton School, and director of the Master in Behavioral Decision Sciences program and the Philosophy, Politics and Economics program. She has worked on problems in the philosophy of social science, rational choice and game theory. More recently, her work has focused on the nature and evolution of social norms, and the design of behavioral experiments to test under which conditions norms will be followed. She is a leader in the field of behavioral ethics and is the director of the Center for Social Norms and Behavioral Dynamics at the University of Pennsylvania. Life and career Bicchieri was born in Milan, Italy. She received her laurea in philosophy, summa cum laude, from the University of Milan in 1976, and her PhD in philosophy of science at Cambridge University in 1984. Before moving to the University of Pennsylvania, she taught in the program of Philosophy and Economics at Barnard College, Columbia University, in the Philosophy department at Notre Dame University and in the departments of Philosophy and Social and Decision Sciences at Carnegie Mellon University. She is also a member of the advisory board at the School of Government at LUISS University of Rome, where she occasionally teaches. Bicchieri has served as a consultant to UNICEF since 2008, and she has advised various NGOs and other international organizations on social norms and how to deal with them when combating negative social practices. Her work on social norms has been adopted by UNICEF in its campaigns to eliminate practices that violate human rights. She was knighted Cavaliere Ordine al Merito della Repubblica Italiana in 2007. In 2020 she was elected to the Germany National Academy of Science, Leopoldina. In 2021, she was elected a Fellow of the American Academy of Arts and Sciences. Philosophical work Bicchieri is especially known for her work regarding the epistemic foundations of game theory and social norms. Her recent experimental work is a major contribution to behavioral ethics, as it shows how different kind of expectations influence pro-social behavior. The Behavioral Ethics Lab which she leads specializes in the study of social norms, moral heuristics, biases, resource division, cheating, corruption, measures of autonomy and their relation to social change. Social norms