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....

We use a stylized model to show that, if transfers to the poor are founded on a security argument, there is a negative trade-off between law enforcement expenditures and criminality. In contrast, if transfers are based on altruism, the correlation between the same variables may appear positive....

In order to prepare and employ naval power and contribute to national defense, the Brazilian Navy, through its programs and projects, seeks to develop means of implementation of naval war operations and actions suitable for its main tasks - sea denial and control, and power projection. A...

Over the last decade, the defense industry has obtained relevance on Brazilian public policies. Departing from the premise that the success of this process requires not only that the Armed Forces have modern equipment and skilled military to operate them, but also that the country retains the...

This article demonstrates that the influence of government ideology on military expenditures is more nuanced than it was shown in previous research and using only aggregated military expenditures may provide ambiguous results. The disaggregation of military expenditures allows concluding that in...

This paper deals with the effect of gun laws on crime. Several empirical analyses are carried to investigate the relationship between five different crime rates and alternative law variables. The tests are based on cross-section data from US sates. Three different law variables are used in the...

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...

On July 13, 2020 a complete nation-wide ban was placed on the sale and transport of alcohol in South Africa. This paper evaluates the impact of this sudden and unexpected five-week alcohol prohibition on mortality due to unnatural causes. We find that the policy reduced the number of unnatural...

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...