We study the consequences of leniency - reduced legal sanctions for wrongdoers who spontaneously self-report to law enforcers - on sequential, bilateral, illegal transactions such as corruption, manager-auditor collusion, or drug deals. It is known that leniency helps to deter illegal...

We study a model where some investors (“hedgers”) are bad at information processing, while others (“speculators”) have superior information-processing ability and trade purely to exploit it. The disclosure of financial information induces a trade externality: if speculators refrain from...

We study the impact of the announcement of enforcement of financial and securities regulation by the UK’s Financial Services Authority and London Stock Exchange on the market price of penalized firms. Since these agencies do not announce enforcement until a penalty is levied, their actions...

The regulations that shape the design and the operations of corporations, credit and securities markets differ vastly from country to country. In addition, similar regulations are often unequally enforced in different countries. Economists still have an imperfect understanding of why these...

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...

A model of harassment bribes (paid for services one is entitled to) is developed and used to analyze the recent proposal to legalize paying bribes while increasing fines on accepting bribes. We explore performance as regards corruption deterrence and public service provision. A modified scheme,...

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 review current methods for calculating fines against cartels in the US and EU, and simulate their deterrence effects under different assumptions on the legal and economic environment. It is likely that European fines have not had significant deterrence effects before leniency programs were...