Two countries set their enforcement non-cooperatively to deter native and foreign individuals from committing crime in … their territory. Crime is mobile, ex ante (migration) and ex post (fleeing), and criminals hiding abroad after having com …- mitted a crime in a country must be extradited back. When extradition is not too costly, countries overinvest in enforcement …

, arrest increases the probability an offender is charged with a crime. Our findings argue against recent calls for a …

How does exposure to Islamist terrorism change perceptions of the share of Muslims and immigrants? We conduct a large …

provide causal estimates of the effect of U.S. military aid on anti-American terrorism. We find that higher levels of military … aid led to an increased likelihood of the recipient country to produce anti-American terrorism. For our preferred … instrumental-variable specification, doubling U.S. military aid increases the risk of anti-American terrorism by 4.4 percentage …

This study examines the effect of religiosity on terrorism by focusing on one of the five pillars of Islam: Ramadan … countries. We argue that this effect partly operates through a decrease in public support for terrorism, which in turn reduces …

We compare the realised impact of terrorism and disasters linked to natural hazards. Using fifty years of data from two … impactful than terrorism. The former had a larger realised impact in all regions in both gross and per-capita terms. The largest … cross-peril difference was in Asia, where natural hazard disasters took 324 million Lifeyears, while terrorism took ten …