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....

The paper analyses the empirical relationship between immigrants and crime using panel data for 391 German administrative districts between 2003 and 2016. Employing different standard panel estimation methods, we show that there is no positive association between the immigrant rate and the crime...