Daniel Kahneman was an Israeli-American psychologist best known for his work on the psychology of judgment and decision-making as well as behavioral economics, for which he was awarded the 2002 Nobel Memorial Prize in Economic Sciences together with Vernon L. Smith. Kahneman's published empirical findings challenge the assumption of human rationality prevailing in modern economic theory. Kahneman became known as the "grandfather of behavioral economics." The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2002, announced October 9, 2002. Daniel Kahneman (1/2), “for having integrated insights from psychological research into economic science, especially concerning human judgment and decision-making under uncertainty”. Vernon L. Smith (1/2), “for having established laboratory experiments as a tool in empirical economic analysis, especially in the study of alternative market mechanisms”. Daniel Kahneman: born 1934, Tel Aviv, British Mandate of Palestine (now Israel). Vernon L. Smith: born 1927, Wichita, KS, USA. Wiki link Wiki link Data: the Nobel Foundation (CC0).