Title: A solution to the problem of nuisance suits
Description: "A solution to a broad category of nuisance suits is examined in this paper.  The solution is to give defendants the option to have courts prevent settlements (by refusing to enforce them).  Then, if a defendant knows he is facing a plaintiff who would not be willing to go to trial, the defendant would exercise his option to bar settlement, forcing the plaintiff to withdraw.  And because the plaintiff would anticipate this, he would not bring his nuisance suit in the first place"--John M. Olin Center for Law, Economics, and Business web site.