Social media have great potential to support diverse information sharing, but there is widespread concern that platforms like Twitter do not result in communication between those who hold contradictory viewpoints. Because users can choose whom to follow, prior research suggests that social media...

What makes economic and ecological networks so unlike other highly skewed networks in their tendency toward turbulence and collapse? Here, we explore the consequences of a defining feature of these networks: their nodes are tied together by flow. We show that flow networks tend to the power law...

By lowering search costs, making more products available, and providing access to free content, information technology (IT) has changed patterns of market concentration in media industries such as recorded music. In this paper, I argue that to understand how IT has changed media markets we need...

How do social networks affect the diffusion of information? While previous research has mainly focused on the spread of specific messages, we study how the overall mix of information that diffuses through multiple intermediaries can become distorted or biased based on what categories of...