Professor University of Manitoba

Professor of Philosophy, University of Michigan Ann Arbor

Idaho State University

Department of Social And Political Sciences, University of Milano

Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional

Emeritus Professor of Philosophy, University of Washington, Seattle

The London School of Economics and Political Science

Associate Professor of Sociology, University of Groningen

Professor of Philosophy, University of Kansas

Assistant Professor, Utrecht University