In this article, we examine anti-foreigner hate crime in the wake of the large influx of asylum seekers to Germany in 2014 and 2015. By exploiting the quasi-experimental assignment of asylum seekers to German regions, we estimate the causal effect of an unexpected and sudden change in the share...

In this article we develop a theoretical model to explain the homicide rate in any given place and construct a Bayesian model with a spatial structure to test the hypotheses. We assume that in his quest for self-fulfilment the individual, when taking the decision to perpetrate violence, not only...

El Salvador, Honduras and Guatemala count among today's most violent countries of the world. Qualitative research has claimed that large-scale deportations of Central American convicts have played an important role for the spread of gangs and rampant violence in the region. Using a novel...

This study analyses the impact of a high-profile crime event on perceived public safety. At the 2015 New Year's Eve celebrations in Cologne (NYE), Germany, refugees allegedly committed over a thousand crimes, ranging from theft to sexual assault. The widespread media coverage of these incidents...

Does large-scale refugee immigration affect crime rates in receiving countries? We address this question based on the large and unexpected refugee inflow to Germany that peaked in 2015-2016. Arriving refugees were dispersed across the country based on a binding dispersal policy, yet we show that...

This paper evaluates the impact of a sudden and unexpected nation-wide alcohol sales ban in South Africa. We find that this policy causally reduced injury-induced mortality in the country by at least 14% during the five weeks of the ban. We argue that this estimate constitutes a lower bound on...

Recent evidence suggests a positive impact of air pollution on crime in large cities. We provide first evidence on the potential effect of air pollution on criminal activity using a broader set of geographical regions with lower air pollution levels. We use a unique combination of daily crime...

This study focuses on the role of heterogeneity in network peer effects by accounting for network-specific factors and different driving mechanisms of peer behavior. We propose a novel Multivariate Instrumental Variable (MVIV) estimator which is consistent for a large number of networks keeping...

We analyze the impact of the Network Enforcement Act, the first regulation which aims at restraining hate speech on large social media platforms. Using a difference-in- differences framework, we measure the causal impact of the German law on the prevalence of hateful content on German Twitter....