1. Vienna University of Economics and Business Assistant professor at the Institute for Digital Marketing & Behavioral Insights, , 1020 Vienna, Austria
2. University of Lucerne Professor of digital marketing at the Institute of Marketing and Analytics, , 6002 Lucerne, Switzerland
3. University of St. Gallen Associate professor of empirical research methods at the Institute of Behavioral Science and Technology, , 9000 St. Gallen, Switzerland
4. Columbia Business School Robert D. Calkins professor of international business, , New York City, NY 10027, USA