Under contingent fees the attorney gets a share of the judgment; under conditional fees the lawyer gets an upscale premium if the case is won which is, however, unrelated to the adjudicated amount. We compare conditional and contingent fees in a principal-agent framework where the lawyer chooses...

In trials witnesses often slant their testimony to advance their interests.To obtain truthful testimony, courts rely on perjury rules. We show that perjury rules are not truth-revealing and we derive a truth-revealing mechanism for the same set of restrictions under which perjury rules operate....

Witnesses often gain by slanting testimony. Courts try to elicit the truth with perjury rules. Perjury is not truth-revealing; truth revelation is, however, possible. With a truth-revealing mechanism the judge will get little testimony because the defendant will not present witnesses with...

Two firms produce a good with a horizontal and a vertical characteristic called quality. The difference in the unobservable quality levels determines how the firms share the market. We consider two scenarios: in the first one, firms disclose quality; in the second one, they send costly signals...