- The US spends more than average on prison guards but less than average on police.
- Our focus on prisons over police may be crazy but it is consistent with what I called Gary Becker’s Greatest Mistake, the idea that an optimal punishment system combines a low probability of being punished with a harsh punishment if caught. That theory runs counter to what I have called the good parenting theory of punishment in which optimal punishments are quick, clear, and consistent and because of that, need not be harsh.
- Increasing the number of police on the street, for example, would increase capture rates and deter crime and by doing so it would also reduce the prison population. - -We based our calculation not only on our own research from Washington DC but also on the research of many other economists which together provide a remarkably consistent estimate that a 10% increase in policing would reduce crime by 3 to 5%. -
- marijuana decriminalization and legalization have begun to move resources away from the war on drugs. Legalization in states like Colorado does not appear to have increased crime and has likely contributed to a dramatic decline of violence in Mexico. As we move resources away from drug crime, police will have more resources to raise the punishment rate for those traditional crimes like murder, robbery and rape that communities everywhere do want punished. -
http://marginalrevolution.com/marginalrevolution/2016/04/police-versus-prisons.html
