The Impact of Green Marketing Practices on Competitive Advantage and Business Performance among Manufacturing Small and Medium Enterprises (SMEs) in South Africa By Eugine Tafadzwa Maziriri A THESIS Submitted in fulfilment of the requirements for the degree of DOCTOR OF PHILOSOPHY Business Sciences (Marketing) Under the Supervision of: Professor Richard Chinomona and Dr Norman Chiliya in The School of Economic and Business Sciences, at the UNIVERSITY OF THE WITWATERSRAND 2018