This thesis advances a unified concept of the express trust—both private and charitable—that emerges from an examination of its mandatory law, and informed by the oft-cited purpose of the trust structure: to benefit another. This concept, or theory of the express trust, is of a framework of legal rules whose purpose is to confer enforceable benefits on people, and that what is beneficial is determined by reference to the broader social context (which includes the economic and commercial environment) in which an express trust operates. The reason for advancing such a concept of the express trust, and the problem it addresses as a result, is that in the modern social and economic context, private and charitable trusts have come to be utilis...