This paper estimates a dynamic model of user behavior in a social network site using unique data on the daily login activity of a sample of members of MySpace.com. We view a social network as a stock of capital that yields a flow of utilities over time by creating interactions between the site...

This article suggests a modeling framework to investigate the optimal strategy followed by a monopolistic firm to manipulate the process of opinion formation in a social network. We consider a network which consists of the monopolist and a set of consumers who communicate to form their beliefs...

Social platforms often use curation algorithms to match content to user tastes. Although designed to improve user experience, these algorithms have been blamed for increased polarization of consumed content. We analyze how curation algorithms impact the number of friends users follow and the...