Professor of Finance at the Gordon Institute of Business Science, University of Pretoria, South Africa.Visiting Professor at Rotterdam School of Management, Erasmus University, Netherlands, since 1997.Chair of South African Finance Association, since 2017.National Research Foundation Accredited Researcher, since 2003.Director of the Graduate School of Management, University of Pretoria, 1998 - 2002.Director of Wits Business School, University of the Witwatersrand, 1997-2004.