Andrew Stephen is the L’Oréal Professor of Marketing and marketing area chair at the Saïd Business School at the University of Oxford.

Primary research focus

Social media, digital marketing, digital transformation, word of mouth, mobile marketing, marketing innovation.


Andrew Stephen’s research answers questions such as how should companies use social media as part of their marketing strategies, how does using social media psychologically impact consumers, how do online networks impact profitability in ecommerce markets, how can companies encourage and optimize word of mouth between customers, how can crowdsourcing product ideas from customers be improved, and what types of products are best suited to mobile advertising. He is one of the leading academic experts on social media marketing, and is currently working on projects aimed at deepening our understanding of many aspects of digitized and socialized consumption in increasingly digital market environments.

Exemplary papers

Wilcox, K.; Andrew T.S.: Are Close Friends the Enemy? Online Social Networks and Self-Control, Journal of Consumer Research, 40 (June), 2013, 90-103.
The paper is available here.


Andrew Stephen has a PhD in marketing (with distinction) and an MPhil in marketing from Columbia University. He also has a Bachelor of Business (with first class honors) and a Bachelor of Engineering (with first class honors) from the University of Queensland in Australia.


Andrew Stephen has published in the leading marketing journals, including Journal of Marketing Research, Journal of Consumer Research, and Marketing Science, as well as journals outside of marketing such as Psychological Science.


Andrew Stephen has received numerous awards for his research, including winning the Donald Lehmann Award, John Howard Award, and Alden Clayton Award, and being the runner up for best paper awards such as the Paul Green Award, William O’Dell Award, and John Little Award. In 2015 he was named as one of the world’s top 40 business school professors under 40 by Poets and Quants, and was listed as one of the top 20 most productive marketing scholars based on publications between 2010 and 2014.


In addition to his research work, Andrew has worked or consulted with some of the world’s leading companies such as American Express, Colgate-Palmolive, Intel, and WPP, and serves as an advisor to a number of startups. He teaches digital marketing, social media, and digital transformation strategies to MBAs and executives at Oxford. Prior to the University of Oxford in 2015, Andrew was a marketing professor at the University of Pittsburgh (2011-2015) and INSEAD (2009-2011).