Life and Death in the Fast Lane: Police Enforcement and Traffi c Fatalities
نویسندگان
چکیده
This paper estimates the causal effect of police on traffi c fatalities and injuries. Due to simultaneity, estimating the causal effect of police enforcement on crime is often diffi cult. We overcome this obstacle by focusing on a mass layoff of the Oregon State Police in February of 2003, stemming from Measure 28. Due solely to budget cuts, 35 percent of the roadway troopers were laid off, which dramatically reduced citations. The subsequent decrease in enforcement corresponds with a 10 to 20 percent increase in injuries and fatalities on highways, with the strongest effects under fair weather conditions and outside of city-limits. Utilizing various counterfactual groups, we find similar effects. Based on our estimates, we find a highway fatality can be prevented with $320,000 in expenditures on state police.
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