We study the role of perceived threats from other cultures induced by terrorist attacks and by a criminal event on public discourse and voters’ support for radical right parties. We first develop a rule which allocates Twitter users in Germany to electoral districts and then use a machine...

We study the role of perceived threats from cultural diversity induced by terrorist attacks and a salient criminal event on public discourse and voters' support for far-right parties. We first develop a rule which allocates Twitter users in Germany to electoral districts and then use a machine...

We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong alert effect of mailings, leading to a substantial increase in...