Menahen E. Yaari is a professor of economics at the Hebrew University of Jerusalem, where he holds the Schonbrunn Chair in Mathematical Economics. His undergraduate degree, in economics and philosophy, was granted by the Hebrew University in 1958. From 1958 to 1962, he was a graduate student at Stanford University, earning a Ph.D. in economics and statistics. From 1962 to 1965, he was assistant professor and then associate professor at Yale University and a member of the Cowles Foundation for Research in Economics.
Professor Yaari has been on the faculty of the Hebrew University since 1967 and has served as president of the Open University in Tel Aviv. He served as coeditor of Econometrica from 1968 to 1975 and was elected a Fellow of the Econometric Society in 1970. Professor Yaari's research has been mainly in the economics of uncertainty, in consumer theory, and in economic justice.
*This biography was taken from Frontiers of Research in Economic Theory: The Nancy L. Schwartz Memorial Lectures, 1983-1997