1. Department of Marketing, Guangdong University of Finance and Economics, Guangzhou, Peoples Republic of China
2. Department of Management Sciences, COMSATS University Islamabad, Islamabad, Pakistan
3. Marketing Division, School of Business Sciences, Faculty of Commerce, Law, and Management, University of Witwatersrand, Johannesburg, South Africa
4. School of Management University of Bath, Claverton Down, BA2 7AY Bath, UK