environment. Using geocoded crime data and a novel source of within-city spatial and temporal variation in punishment severity, I … am able to shed light on enforcement behavior. I find that in parts of a city where drug penalties were weakened, there … is a 13% decrease in drug arrests within a year; there is no displacement of non-drug offenses and majority black …

addiction. Curiosity or a transient attraction can lead an offender to commit her first crime. This first infraction will give … misconduct. If the feedback is sufficiently positive, the offender may commit a second crime, and possibly a third. At some point …, the offender will find herself with the opportunity to commit yet another crime, and realize that the immediate disutility …