Dan Mitchell – October 20, 2018
The War on Drugs is a bad idea. Not because people should be using drugs, but rather because the societal harm of prohibition is much greater than the societal harm of legalization.
Moreover, even though I personally disapprove of drug use, I adhere to the libertarian principle that people should be free to do what they want (even stupid things) with their own bodies.
Today, though, let’s focus on the practical argument and look at some fascinating academic research from Evelina Gavrilova, Takuma Kamada, and Floris Zoutman (two economists and a criminologist). Here’s a summary from the abstract of their study.
We examine the eﬀects of medical marijuana laws (MMLs) on crime. …Using data from the Uniform Crime Reports, we show that the introduction of MMLs lead to a decrease of 12.5 percent in violent crime, such as homicides, aggravated assaults and robberies in states that border Mexico. We also show that the reduction in violent crimes is strongest for counties close to the border (less than 350km)… Analysis from the Supplementary Homicide Reports data reveals that the decrease in homicides can largely be attributed to a drop in drug-law related homicides. We ﬁnd evidence for spillover eﬀects. When an inland state passes a MML, this results in a decrease in crime in the nearest border state. Our results are consistent with the theory that the introduction of MMLs reduces activity by Mexican drug traﬃcking organizations and their aﬃliated gangs in the border region. MMLs expose drug traﬃcking organizations (DTOs) to legitimate competition, and substantially reduce their proﬁts in one of their most lucrative drug markets. This leads to a decrease in drug related crime in the Mexican border area. Our results indicate that decriminalization of the production and distribution of drugs may lead to a reduction in violence in markets where organized drug criminals meet licit competition.
In other words, legalize drugs and you get less violent crime.