The Effects of the Summer All Out Foot Patrol Initiative in New York City: A Difference-in-Differences Approach

Thomas J. Bilach, Sean Patrick Roche and Gregory J. Wawro
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Sean Patrick Roche: Texas State University

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Abstract: Objectives: The New York City Police Department’s “Summer All Out” (SAO) initiative was a 90- day, presence-based foot patrol program in a subset of the city’s patrol jurisdictions. Methods: We assessed the effectiveness of SAO initiative in reducing crime and gun violence using a difference-in-differences (DiD) approach. Results: Results indicate the SAO initiative was only associated with significant reductions in specific property offenses, not violent crime rates. Foot patrols did not have a strong, isolating impact on violent street crime in 2014 or 2015. Deployments on foot across expansive geographies also has a weak, negligible influence on open-air shootings. Conclusions: The findings suggest saturating jurisdictions with high-visibility foot patrols has little influence on street-level offending, with no anticipatory or persistent effects. Police departments should exercise caution in deploying foot patrols over large patrol jurisdictions.

Date: 2020-09-20
New Economics Papers: this item is included in nep-law and nep-ure
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DOI: 10.31219/osf.io/ep4fs

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