This paper exploits dictated delays in local police hiring by a centralized national authority to break the simultaneity between police and crime. In Italy police officers can only be hired through lengthy national public contests which the Parliament, the President, and the Court of Auditors...

We estimate the incapacitation effect on crime using variation in Italian prison population driven by eight collective pardons passed between 1962 and 1995. The prison releases are sudden - within one day -, very large - up to 35 percent of the entire prison population - and happen nationwide....

Beneficiaries of Social Security face restrictions on how much they can earn without incurring the earnings test (ET). In 2000, President Clinton eliminated the ET between age 65 and 70. In this paper I evaluate how this removal impacts the long-term finances of the Trust Fund. I find that...

More policing reduces crime but little is known about the mechanism. Does policing deter crime by reducing its attractiveness, or because it leads to additional arrests of recurrent criminals? This paper provides evidence of a direct link between policing and arrests. During shift changes a...

More policing reduces crime but little is known about the mechanism. Does policing deter crime by reducing its attractiveness, or because it leads to additional arrests of recurrent criminals? This paper provides evidence of a direct link between policing and arrests. During shift changes a...

We exploit exogenous variation in legal status following the January 2007 European Union enlargement to estimate its effect on immigrant crime. We difference out unobserved time-varying factors by (i) comparing recidivism rates of immigrants from the "new" and "candidate" member countries; and...

We estimate the "incapacitation effect" on crime using variation in Italian prison population driven by eight collective pardons passed between 1962 and 1990. The prison releases are sudden (within one day), very large (up to 35 percent of the entire prison population), and happen nationwide....