Debate continues as to the transformations in terrorism evidenced by the September 11 attacks and since that time. Some, including the former U.S. President, point to changes in the nature of terrorism and argue that September 11 constituted a wholly new form of terrorism that demanded a novel...

Because of the difficulties of distinguishing friend and foe, security and insecurity, or even war and peace, terrorism appears to be an endemic and endless risk. The embedded nature of the terrorist risk appears to demand the treatment of one's neighbour as potentially friend and foe. One of...

We test the rational economic model of marginal deterrence of law enforcement - i.e., the need for graduating the penalty to the severity of the crime. We combine individual-level data on sentence length for a representative sample of US inmates with proxies for maximum punishment and monitoring...

Does early release decrease or increase the probability that ex-convicts will return to prison? We exploit unique data from Israeli courts, where appearance before the judge throughout the day has an arbitrary component. We first show that judges more often deny parole requests of prisoners...

While the notion of 'Christmas pardons' has been around for some time, there has been almost no empirical research on whether federal executive clemency is in any way patterned in a manner that would legitimize the notion of 'Christmas' or even 'seasonal' pardons. Furthermore, previous research...

This paper contributes to the literature on specific deterrence by addressing the issue of selecting adolescents into adult and juvenile law systems. In Germany, different from the U.S. and most other countries, turning a critical cutoff age does not cause a sharp discontinuity from juvenile to...

In 2007, the Wall Street Journal published an article claiming that each execution saves more than 70 lives. This example is used to show how easy it is, using simple or advanced econometric techniques, to produce results that do or do not support the deterrence hypothesis. Moreover, we also...

In this paper we estimate the effects of expanding access to substance-abuse treatment on local crime. We do so using an identification strategy that leverages variation driven by substance-abuse-treatment facility openings and closings measured at the county level. The results indicate that...

This article develops a Bayesian approach for estimating panel quantile regression with binary outcomes in the presence of correlated random effects. We construct a working likelihood using an asymmetric Laplace (AL) error distribution and combine it with suitable prior distributions to obtain...

Empirical evidence on the causes and effects of inequality suggests the existence of a vicious circle of mutually reinforcing inequality and corruption. Despite the broad empirical evidence, there are only a few formal theoretical models on these dynamics. Relying on a game-theoretic approach,...