We survey the literature on social networks by putting together the economics, sociological and physics/applied mathematics approaches, showing their similarities and differences. We expose, in particular, the two main ways of modeling network formation. While the physics/applied mathematics...

The aim of this paper is to investigate whether return migrants are more likely to become entrepreneurs than non-migrants. We develop a theoretical search model that puts forward the trade off faced by returnees since overseas migration provides an opportunity for human and physical capital...

Both migrant entrepreneurship and social capital are topics which have attracted a great deal of attention. However, relatively little econometric analysis has been done on their interrelationship. In this paper we first consider the relationship between social capital and the prevalence of...