1. Marketing Section, School of Management Studies, Faculty of Commerce, University of Cape Town, Cape Town, South Africa
2. Department of Business Management, Faculty of Economic and Management Sciences, University of Free State, Bloemfontein, South Africa
3. Marketing Division, School of Business Sciences, University of Witwatersrand, Johannesburg, South Africa
4. Entrepreneurship and Business Management Department, Cape Peninsula University of Technology, Cape Town, South Africa