Is it Displacement? Evidence on the Impact of Police Monitoring on Crime

Produced by: 
Universidad de San Andrés
Available from: 
August 2016
Paper author(s): 
Ignacio Munyo (Universidad de Montevideo)
Martín Rossi (Universidad de San Andrés)
Topic: 
Conflict, Crime and Violence
Year: 
2016

We exploit detailed information on location and exact date of installation of policemonitored surveillance cameras coupled with daily data at the street-segment level on all reported crimes in the city of Montevideo, Uruguay, to study the impact of police monitoring on crime. The introduction of police-monitored surveillance cameras reduces crime by 28 percent in monitored areas relative to un-monitored areas of the city. Results are robust to alternative definitions of the control group. A series of placebo experiments reassure that the findings have a causal interpretation. We find evidence that the reduction in crime in police monitored areas of the city is compensated by an increase in crime in other areas of the city.

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Research section: 
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