This monograph addresses the phenomenon of mass harm and how it may be resolved through collective redress. It examines particularly how such redress may be achieved through mechanisms such as multi-party actions. In order to do this, an analytical framework is created against which to evaluate various multi-party procedures. This is illustrated through the experience of a selection of common law jurisdictions in dealing with mass harm-namely that of the United States, Canada, Australia, and England and Wales, as well as that of EU collective redress. The author examines multi-party action...