We study and compare law enforcement costs under two alternative burden of proof rules with the objective of reducing crime to a target level. We show that presuming innocence rather than guilt has a cost advantage, mainly due to lower costs of preventing collusion between law enforcers and...

We consider a multi-stage game of fund-raising to study the announcement strategy of a fund-raiser, who is privately informed about the number of potential contributors, with the objective of collecting maximal contributions for a public project. We show that whether the public project is convex...

An adversarial model of criminal trial is considered with three verdict choices--innocent, guilty of moderate crime, and guilty of serious crime. Depending on the parties' access to evidence and initial beliefs in the courtroom about the possible crimes, the judge may agree to the defendant's...