Constantinos was born in Athens and raised in Colonos neighborhood. He holds a B.Sc. in Philosophy and History of Science and a M.A. in Political Science and Sociology (Hons) from University of Athens. He has also received his M.Sc. in Applied Economics and Administration from Panteion University. His main research interests include methods of social research, political sociology, political philosophy and political economy, with special focus on poverty, inequality and prosperity.