Using time series analysis on data from 1979-2004, Baker and McPhedran (2006) argue that the stricter gun laws introduced in the National Firearms Agreement (NFA) post- 1996 did not affect firearm homicide rates, and may not have had an impact on the rate of gun suicide or accidental death by...

Does the death penalty save lives? A surge of recent interest in this question has yielded a series of papers purporting to show robust and precise estimates of a substantial deterrent effect of capital punishment. We assess the various approaches that have been used in this literature, testing...

We investigate the determinants of the support for cannabis legalization finding a causal effect of personal experience with cannabis use. Current and past cannabis users are more in favor of legalization. We relate this to self-interest and inside information about potential dangers of cannabis...

When penalties for first-time offenders are restricted, it is typically optimal for the lawmaker to overdeter repeat offenders. First-time offenders are then deterred not only by the (restricted) fine for a first offense, but also by the prospect of a large fine for a subsequent offense. Now...

We develop an agency model of organized crime accounting for the main trade-offs involved by the introduction of an accomplice-witness program. We characterize the optimal policy and identify its main determinants in a framework where public officials can be dishonest. Our predictions are tested...

In a model in which firms can go bankrupt because of adverse market shocks or antitrust fines, we find that even large corporate fines may not be able to induce deterrence. Managerial penalties are thus needed. If the policy may be changed according to the state of the business cycle, then the...

We investigate possible racial discrimination in the context of discretionary parole release. We develop a rational choice model of release whereby a parole board must balance parolees' risk of violation with the cost of not releasing prisoners who may not violate their parole. A color-blind...

Economists generally assume the existence of sufficient institutions to sustain a market economy and tax the citizens. However, this starting point cannot easily be taken for granted in many states, neither in history nor in the developing world of today. This paper develops a framework where...

The economic literature on enforcement is generally pessimistic concerning the use of legal aid. In this Paper we show that legal aid can be part of optimal law enforcement. The rationale behind our result is that with legal aid, in a system with legal or judicial error, both guilty and innocent...

In cooperation with Lex Mundi member law firms in 109 countries, we measure and describe the exact procedures used by litigants and courts to evict a tenant for non-payment of rent and to collect a bounced check. We use these data to construct an index of procedural formalism of dispute...