Profiling Customer Knowledge Workers in an Environmental Sustainability Context: A Latent Class Analysis Approach

Estelle van Tonder is a Professor of Marketing at the North-West University in Potchefstroom, South
Africa, where she teaches Retail Management and Strategic Marketing at postgraduate level.
Formerly she was Head of Department in the School of Commerce at Milpark Education, where she
gained extensive experience in programme development and management. Estelle holds a DCom
degree in Marketing Management and is an NRF rated researcher. Her research focuses on customer
citizenship behaviour. She is particularly interested in advancing understanding of the social support
and help customers provide to other customers in the retail environment and has initiated and
managed several collaborative research projects with international colleagues in this regard. Her
research has been published in international highly regarded peer-reviewed journals, most notably
the Journal of Business Research, Journal of Consumer Marketing and International Journal of
Retailing and Consumer Services. As a specialist in her field, Estelle regularly speaks at International
conferences, acts as referee for various international journals and conferences, has made several
textbook contributions, is involved in postgraduate supervision and examination and acts as a
consultant for industry. Estelle is also a member of the Southern Africa Institute of Management
Scientists. Email: estellevantonder4@gmail.com

Christo Bisschoffb is a marketing professor at the North-West University’s Business School in South Africa. He enjoys researching topics such as brand loyalty, agribusiness, and business ethics. Christo resigned from the International Business Conference Chairmanship but continues to act as Editor of the conference proceedings.

Stephen G. Saunders is a senior lecturer in the Department of Marketing, Monash Business School, Monash University. He holds a Master of Commence, and an MBA from the University of the Witwatersrand, and a Doctor of Commerce from the University of Johannesburg. He also holds a Graduate Certificate in Higher Education from Monash University, and is an Australian Marketing Institute Certified Practising Marketer (CPM). Stephen’s work focuses on the impact of marketing on society. He is also particularly interested in social exchange theory, WaSH (water, sanitation and hygiene), the informal sector, consumer vulnerability and participatory action methods. His work has been published in leading marketing journals, including Marketing Theory, Journal of Services Marketing, Journal of Social Marketing, Advances in Consumer Research, Journal of Consumer Affairs, Journal of Service Theory and Practice, and Journal of Economic Psychology. As his research interests are mainly multidisciplinary, he has also published in leading public health and development journals such as Social Science & Medicine and Habitat International. Stephen has been awarded several teaching awards, including the Dean's Award for Teaching Excellence and a Vice-Chancellor’s Education Award Nomination. He has also secured category A Australian Department of Foreign Affairs & Trade and Australian Aid funding for his work in the Pacific.

Naz Onel is an Associate Professor of Business Administration at Stockton University, New Jersey, USA. Her principal areas of research are consumer decision-making and well-being, sustainability marketing, digital behavior, artificial intelligence and sustainable living, and corporate social responsibility. She has presented her work at national and international scholarly conferences as a keynote speaker, and invited guest speaker, attended sessions as a panel discussant, and served as a conference chair, proceedings editor, and track chair. She serves on the Board of Directors of the Northeast Business & Economics Association, which she has served as the conference chair in 2021. Her research has been published in various reputable refereed journals and books.