Itzhak Gilboa works in decision theory and other fields in economic theory such as game theory and social choice. His main interest is in decision under uncertainty, focusing on the definition of probability, notions of rationality, non-Bayesian decision models, and related issues. He is Professor at Eitan Berglas School of Economics, Tel-Aviv University and Professor of Economics and Decision Sciences, HEC, Paris, as well as Fellow of the Cowles Foundation for Research in Economics, Yale University (part time).