Literature on network formation typically assumes that people create and remove relations as to maximize their outcome in the network. It is mostly neglected that people might also care about the outcomes of others when creating and removing links. In the current paper, we develop an experiment...

We specify and implement a test for the importance of network effects in determining the establishments at which people work, using recently-constructed matched employer-employee data at the establishment level. We explicitly measure the importance of network effects for groups broken out by...

Starting from the assumption that innovations emerge from a combination of different types of knowledge and are the result of collective efforts, this dissertation examines the social process through which knowledge obtained from outside an organization is used to create innovations with...

Our societies are heterogeneous in many dimensions such as census, education, religion, ethnic and cultural composition. The links between individuals - e.g. by friendship, marriage or collaboration - are not evenly distributed, but rather tend to be concentrated within the same group. This...

We study the existence of homophily (i.e. the tendency for people to make friends with people who are similar to themselves) with respect to trustworthiness. We ask whether two friends show similarly trustworthy behavior towards strangers, and whether this is anticipated by outsiders. We develop...

The authors examine how adolescent friendship networks are linked to binge drinking trajectories into young adulthood using Add Health. They add to the literature by examining whether an individual’s structural position, (group member, liaison, or isolate), in friendship networks is linked to...

This paper examines optimal targeting and sequencing strategies in the setup proposed by Ballester et al. (2006). The setup features payoff externalities and strategic complementarity among players, who non-cooperatively determine their contributions. We first analyze a two-stage game in which...

This paper employs the empirical tools of social network analysis to examine the “property as social relations” approach to intellectual property. Social network analysis seeks to describe and model society and culture based on the connections between agents in a network. A “property as...

We study how the achievements of university students are influenced by the characteristics and achievements of peers in individuals’ social networks. Defining peer group in terms of friendship and study partner ties enables us to apply a network regression model and thereby disentangle the...

Social computing is bringing about significant changes to the way we operate and interact. The resulting exchange of ideas is seen as key to innovative capacity. While studies have identified various types of network structures, the subject of how different network structures affect performance...