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Giovanni Mastrobuoni, Crime is Terribly Revealing: Information Technology and Police Productivity, The Review of Economic Studies, Volume 87, Issue 6, November 2020, Pages 2727–2753, https://doi.org/10.1093/restud/rdaa009
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Abstract
An increasing number of police departments use information technology (IT) to optimize patrolling strategies, yet little is known about its effectiveness in preventing crime. Based on quasi-random access to “predictive policing,” this study shows that IT improves police productivity as measured by crime clearance rates. Thanks to detailed information on individual incidents and offender-level identifiers it also shows that criminals strategies are predictable. Moreover, the introduction of predictive policing coincides with a large negative trend-discontinuity in crime rates. The benefit–cost ratio of this IT innovation appears to be large.