Universidad de los Andes Facultad de Economía Por: Santiago Gómez, Daniel Mejía, Santiago Tobón
We investigate if there is any effect on crime following the installation of public surveillance cameras. To do so, we benefit from a quasi-experiment that took place in Medellin, Colombia with the installation of 587 cameras between 2013 and 2015. We highlight three main findings. First, there is a statistically significant decline in total crime after the installation of the cameras. On average, total crime reports are 23.5% lower within the coverage zone following the installation of a camera relative to the average baseline level of crime reports.