From 1947 to 1974 his academic career culminated at the University of Michigan where he was Professor in the Department of Psychology and fellow at the Institute for Social Research.
[2] Katz raised two daughters with his wife, Christine Ross Braley (m.1930),[3] before dying on February 28, 1998, in Ann Arbor, Michigan.
An important methodological contribution was his open system theory, presented in The Social Psychology of Organizations (1966, later revised), which was co-authored by Robert L. Kahn.
In the late 1960s to the early 1970s, Daniel Katz traveled and worked in Yugoslavia, Greece, and Denmark.
He concluded his time abroad in Denmark at the University of Aarhus where he took up a temporary residency as a visiting professor.