University of Chicago

Northwestern University

Professor of Sociology, University of Maryland

University of Texas

Professor of Government, University of Texas at Austin; Senior Fellow, Hoover Institution

Simon Kuznets Kharkiv National University of Economics, ХНЕУ ім. С. Кузнеця

Open University of Israel

Professor of Sociology, University of Maryland

Lecturer Sociology Charles Sturt University

Professor of Sociology, Stellenbosch University