Empirical studies have found that increasing the probability of punishment has a greater effect on crime than the severity of punishment. This note explains this as the result of criminals having imperfect information on their criminal ability. As they commit crimes, they update their estimates...

We consider how parties’ formal contracts are underpinned by their ongoing relationship and how welfare changes as the legal system improves. Regardless of impatience, the parties write formal contracts that they would not honor–despite stipulated penalties–if they interacted only once....

Working with a unique neighborhood homicide dataset from 2008 to 2010, this paper makes two contributions. First, we capture the importance of the spatial dependence on homicide rates within large urban center neighborhoods. Second, we measure the influence of spatial dependence more precisely...

We analyse bonus payments for officials, who transfer payments truthfully to the government rather than collecting bribes. We show that optimised bonus payments are always beneficial to the government, making them a more effective anti-corruption measure than simple wage increases.

Even risk-neutral individuals can insure themselves against crimes by combining direct expenditure on security with costly diversification. In such cases — and even when one of these options is infeasible — greater policing often actually encourages private precautions.

Current Department of Justice merger guidelines assume that merging the capacities of two firms will translate into an equivalent increase in market shares. Size matters. Economic theory asserts size is determined by marginal revenue and marginal cost not capacity. Size does not matter. In this...

The two central pricing rules contained in most antitrust laws are prohibitions of below-cost pricing and prohibitions of discriminatory pricing. This article shows that the rule against discriminatory pricing may actually induce firms to charge exclusionary below-cost prices, even in the...

I investigate an asymmetric duopoly where a public enterprise must supply the demand it faces, while a private enterprise has no such obligation. I show that such an asymmetric regulation yields the first-best outcome (Walrasian equilibrium).