Abstract

During World War II, the Institute for Social Research conducted an innovative study of American working-class antisemitism. This article goes beyond existing literature by reconstructing the project’s evolving understanding of labor antisemitism—from ideology to psychopathology. This change, it argues, arose from the project’s methods, findings, and analytical concepts—especially the long-overlooked concept of the stereotype. The article documents this concept’s role in two better-known Institute works from the period: Dialectic of Enlightenment and Authoritarian Personality. Throughout, it traces continuities in the Institute’s research program and reconsiders the balance between its empirical studies and its critical theory in the 1940s.