He has a PhD from the University of North Carolina at Chapel Hill and was previously a marketing faculty member at Tel Aviv University and at the Israel Institute of Technology and a Visiting Professor at the MIT Sloan School of Management. Much of his research deals with customer social effects such as word of mouth, and their effect on new product growth and the firm's profitability, growth of markets for new products, and customer relationship management. He has published in journals such as Journal of Marketing, Marketing Science, Journal of Marketing Research, Journal of Service Research, and International Journal of Research in Marketing, among others. His research on the economic consequences of customers' interactions has won several academic and industry research prizes.