In this paper, we study the effect of collaboration network structure on editors' contribution behavior in Wikipedia. Collaboration in Wikipedia is organized around articles, and any two editors co-editing an article have a collaborative relationship. Based on economic theories about network...

Web applications that feature online social networking functions have significantly influenced human social interactions. The availability of data sets on online social connections and user activities calls for innovative big-data analytic methods. This study proposes a model of tie strength in...

As one of the most commonly utilized marketing tools, free sampling also has its online presence, especially for information goods. In this article, we provide an analytical model to study the economic rationale behind free online samples. We argue that with the development of technologies, a...