The novelty of our model is to combine models of collective action on networks with models of social learning. Agents are connected according to an undirected graph, the social network, and have the choice between two actions: either to adopt a new behavior or technology or stay with the default...

We study the impact of bots on social learning in a social network setting. Regular agents receive independent noisy signals about the true value of a variable and then communicate in a network. They na¨ıvely update beliefs by repeatedly taking weighted averages of neighbors' opinions. Bots...

Some 2000 years ago, the average annual distance a person would normally travel, was approximately 500 km. The action radius of most people remained rather stable, but it rose gradually after the industrial revolution to some 1820 km (by car, bus, railway or aircraft) in the year 1960. Then, a...

The organization of Electronic Dance Music (EDM) events has become a major export product in the Netherlands. In order to respond quickly to the new trends and needs, innovative forms of cooperation between producers are to be set up for the organization of exciting new events. A case study on...

Can online social contacts replace the importance of real-life social connections in our pursuit of happiness? With the growing use of social network sites (SNSs), attention has been increasingly drawn to this topic. Our study empirically examines the effect of SNS use on happiness for different...

In recent years, social media has become a major venue for the interplay between citizens and public sector organizations, in order to facilitate corporate dialog. However, not much comprehensive research has been done on how interactivity between local governments and citizens takes shape....

In this paper we test the celebrated `Strength of weak ties' theory of Granovetter (1973). We test two hypotheses on the network structure in a data set of collaborating economists. While we find support for the hypothesis of transitivity of strong ties, we reject the hypothesis that weak ties...