Network Structure in Electronic Commerce
Centre for European Economic Research, Germany, the "Web 2.0 and its Implication for Firms and Private Users" workshop (December 2008)
Tel Aviv University, School of Business Administration, Marketing Seminar (February 2008)
Ben-Gurion University, Faculty of Engineering Sciences, Faculty seminar (March 2007)
The Wharton School, Operations and Information Management Seminar (January 2007)
The Hebrew University of Jerusalem, School of Business Administration, Faculty seminar (January 2007)
Tel Aviv University, School of Business Administration, Information Systems Seminar (January 2007)
University of Haifa, Management Information Systems Department, Faculty seminar (December 2006)
New York University, Information System Seminar (April 2006)
Recommendation Networks and Peer Effects in Electronic Commerce
New York University, Information System Seminar. (November 2006)
Piracy, Pricing and Digital Rights Management
University of Haifa, Law and Technology Colloquium (May 2006)
Are Digital Rights Valuable? Theory and Evidence from the eBook Industry
Tel Aviv University. School of Economics, Industrial Organization Workshop. (May 2005)
Tel Aviv University, School of Business, Information Systems Seminar. (May 2005)
Technion Israel Institute of Technology, The Samuel Neaman Institute for Advanced Studies in Science and Technology. (March 2005)
Ben-Gurion University, Information Systems Engineering Department Seminar. (March 2005)
University of Haifa, The Center for the Study of the Information Society. (January 2005)