Can gun violence be deterred at low cost? We report the results of a randomized experiment of a messaging intervention which was designed to reduce gun violence among individuals under parole supervision with a prior violent felony conviction or firearm arrest. The intervention consisted of a...

How does lie detection constrain the potential for one person to persuade another to change her action? We consider a model of Bayesian persuasion in which the Receiver can detect lies with positive probability. We show that the Sender lies more when the lie detection probability increases. As...

We document a sharp rise in gunshots coupled with declining 911 call volume across thirteen major US cities in the aftermath of the murder of George Floyd. National survey data also indicate that victims of crime became less likely to report their victimization to law enforcement due to mistrust...

Children spend years in foster care, and there are concerns that bureaucratic hurdles contribute to unnecessarily long stays. In a novel approach to policy making, the Chilean government randomized the introduction of a program aimed at reducing these delays in order to evaluate its effects on...

We analyze a sample of 47 major US cities to illuminate the mechanisms that lead Right-to-Carry concealed handgun laws to increase crime. The altered behavior of permit holders, career criminals, and the police combine to generate 29 and 32 percent increases in firearm violent crime and firearm...

Did anti-Asian violence rise after the onset of the COVID-19 pandemic? Efforts to answer this question are compromised by the inherent difficulty of measuring racially-motivated crimes as well as concerns that reporting of racially-motivated hate crimes may have changed due to their increased...

Firearm violence is a pervasive public health crisis in the United States, with significant numbers of homicides involving firearms, including indiscriminate shootings in public spaces. This paper investigates the largely unexplored consequences of stress induced by these attacks on newborn...

Abstract This paper extends the Becker (1968)-Ehrlich (1973) model of crime to allow for government transfers. Using the Shapiro and Stiglitz (1984) model, it is shown that one can view deterrence as a tax on (criminal) labor supply. That in turn allows an integration of a crime model with a...

What causes adverse policing outcomes, such as excessive uses of force and unnecessary arrests? Prevailing explanations focus on problematic officers or deficient regulations and oversight. Here, we introduce a new, overlooked perspective. We suggest that the cognitive demands inherent in...

Infrastructure costs in the United States are high and rising. The procurement process is one potential cost driver. In this paper we conduct a survey of procurement practices across the 50 states. We survey both employees at each state department of transportation (DOT) and the road builders...