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...

This paper studies the strategic network formation in a location-based social network. We build an empirical model of social link creation that incorporates individual characteristics and pairwise user similarities. Specifically, we define four user proximity measures from biography, geography,...

In recent years, there has been stellar growth of location-based/enabled social networks in which people can “check-in” to physical venues they are visiting and share with friends. In this article, we hypothesize that the “check-ins” made by friends help users learn the potential payoff...