What are the best authorities to rely upon in the memoranda and in oral argument?
This question raises one of the difficulties for a practitioner as well as a participant in the Moot. Lawyers (and therefore arbitrators) from a common law background tend to consider decisions of appellate courts as particularly persuasive while lawyers from a civil law background tend to be more persuaded by the doctrinal writings of eminent professors. A judicious mixture is probably the best. Of course, the text of the relevant statute, convention, contract provision or rule is always the highest authority.