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In observance of the 2024 holiday season, Sage offices will be closed Monday December 23rd through Wednesday January 1st. Normal operations, including shipping for orders placed during the closure, will resume on Thursday January 2nd. For technical support during this time, please visit our technical support page for assistance options. 

We wish you a wonderful holiday season. Thank you. 

Gerard J. Tellis University of Southern California, USA

Gerard J. Tellis (PhD Michigan) is Neely Chaired Professor of American Enterprise, Director of the Institute for Outlier Research, and Director of the Center for Global Innovation, at the USC Marshall School of Business. Dr. Tellis is an expert in public policy, virality on social media, diffusion of innovations, advertising, and global market entry. He has published 7 books and over 200 papers (http://www.gtellis.net ) that have won over 27,000 citations in Google Scholar. His publications have won over 25 awards, including the AMA-IRWIN-McGraw Hill Distinguished Educator, Long Term Impact Marketing Science, Frank M. Bass, William F. O'Dell (twice), and Harold D. Maynard (twice) awards. Dr. Tellis is a Distinguished Professor of Marketing Research, Erasmus University, Rotterdam and a Fellow of Sidney Sussex College, Cambridge University, UK. He is President of ISMS and was an Associate Editor of Marketing Science and Journal of Marketing Research. Previously he was a Trustee of the Marketing Science Institute, the Treasurer and VP External Affairs of ISMS, and a Sales Development Manager of Ethnor/ Johnson & Johnson. In his spare time he is a fruit gardener and a rock collector.