Time series analysis

Comparing 911 and Emergency Hotline Calls for Domestic Violence in Seven Cities: What Happened When People Started Staying Home Due to COVID-19?

We examine the effect of COVID-19 on domestic violence, as measured by daily calls to 911 and Victim Service Agencies' emergency hotlines.

Elevated Police Turnover following the Summer of George Floyd Protests: A Synthetic Control Study

Police resignations - but not retirements or involuntary separations - spiked significantly in a large western department following the George Floyd protests.

The immediate and long-term effects of COVID-19 stay-at-home orders on domestic violence calls for service across six U.S. jurisdictions

In 5 of 6 jurisdictions, domestic violence calls for police service spiked during stay-at-home orders.

Mandatory Sexual Assault Kit Testing Policies and Arrest Trends: A Natural Experiment

We evaluated the effect of a mandatory SAK testing policy on the monthly rape arrest rate in a western jurisdiction.

Is the Number of Citizens Fatally Shot by Police Increasing in the Post-Ferguson Era?


A War on Cops? The Effects of Ferguson on the Number of U.S. Police Officers Murdered in the Line of Duty

We find no evidence for a _war on cops_, as measured by officers murdered in the line of duty from 2010 to 2016.