Do people care equally about reputational gains and losses? We study this question by analyzing users’ contribution to online knowledge repositories, with data from StackOverflow.com, a website for user-curated technical questions and answers. Based on about 18% of all relevant activity on...

It has been conjectured that the peer-based recommendations associated with electronic commerce lead to a redistribution of demand from popular products or "blockbusters" to less popular or "niche" products, and that electronic markets will therefore be characterized by a "long tail" of demand...

We study the spread of exogenous demand shocks generated by book reviews featured on the Oprah Winfrey TV show and published in the New York Times through the online co-purchase recommendation network on Amazon.com. We leverage the co-purchase recommendation network on Amazon.com to determine...

Online commercial interactions have increased dramatically over the last decade, leading to the emergence of networks that link the e-commerce landing pages of related products to one another. Our paper conjectures that the explicit visibility to consumers of such ldquo;product networksrdquo;...