As a common practice, various firms initially make information and access to their products/services scarce within a social network; identifying influential players that facilitate information dissemination emerges as a pivotal step for their success. In this paper, we tackle this problem using...

This paper investigates the dynamic relation between callers' social ties and their wireless phone service consumption. We construct a large pair-level panel dataset with information on the number of each pair's common contacts, calling activities, prices, and each caller's characteristics over...

We examined whether people conform to or diverge from the most popular choice among their friends by conducting a large-scale field experiment on a leading social-networking site in China. Our setting allowed us to minimize confounding effects such as pre-existing taste similarities between a...