The strong adverse selection that immigrants face in hosting labour markets may induce them to adopt some behaviours or signals to modify employers’ beliefs. Relevant mechanisms for reaching this purpose are personal reputation; exploiting ethnic networks deeply-rooted in the hosting country;...

Competition in public utility sectors has been encouraged in recent years throughout Europe. In this paper we try and analyse the welfare effects of these reforms in Italy, with particular attention to water and energy goods. The first step is to introduce a sensible measure of affordability of...

We propose a stylized model of a problem-solving organization whose internal communication structure is given by a fixed network. Problems arrive randomly anywhere in this network and must find their way to their respective “specialized solvers” by relying on local information alone. The...