David Leiser

David Leiser (Hebrew: דויד לייזר; born April 1, 1952) is an Israeli cognitive psychologist, polymath, and Professor Emeritus at Ben-Gurion University of the Negev. A former research assistant to Jean Piaget. His research explores the "lay theories" people use to navigate complex systems—ranging from macroeconomics and geopolitical forecasting to Artificial Intelligence.

Leiser has served as President of the Economic Psychology division of the International Association of Applied Psychology (IAAP) and was president of the International Association for Research in Economic Psychology (IAREP) from 2011 to 2014.