One fundamental economic challenge in social gaming is how to monetize players. We address this problem from the lens of social influence. Specifically, we examine how players' paying behaviors in a social game are associated with their pure friends and Simmelian-tie friends. Analyzing a...

Online peer-to-peer communities and online social networks have become increasingly popular. In particular, the recent boost of online peer-to-peer communities leads to exponential growth in sharing of user-contributed content which have brought profound changes to business and economic...

Based on repeated expressions and the peer influence literatures, we tested the impact of elite politicians' online social networking behaviors on their partisanship behavior. We constructed a panel data for 414 Members of The 113th U.S. House of Representatives across a period of 9 months. To...

By employing a recently developed dynamic network model (separable temporal exponential-family random graph model), we study the effects of homophily based on gender, race, and political party on formation and dissolution of Representatives’ Twitter communications in forms of mentions and...

Indirect reciprocity is an important factor that motivates individual contributions in social networks. However, prior studies of indirect reciprocity are often limited to a snapshot view of individual interactions in social environments. This paper analyzes indirect reciprocity from a dynamic...