We use the UK Quarterly Labour Force Survey to document the presence of: one, a positive correlation between unemployment rate and the proportion of job seekers who use social networks to find jobs and, two a non-monotonic relation between unemployment rate and the proportion of job seekers who...

We consider the spread of a harmful state through a population divided into two groups. Interaction patterns capture the full spectrum of assortativity possibilities. We show that a central planner who aims for eradication optimally either divides equally the resources across groups, or...

This paper studies the effect of social learning on political outcomes in a model of informative campaign advertising. Voters' communication network affects parties' incentives to disclose political information, voters' learning about candidates running for office, and polarization of the...