ABSTRACT South Africa has a sophisticated and developed retirement fund industry and an extensive social security system. While the objective of the latter is wider, both are concerned with financial security: particularly in the face of risks of death, disability and old age. It is widely recognised that there are many gaps in coverage. The chapters in this thesis address these gaps and administrative and benefit structures that could be developed to provide a truly comprehensive social security system. In particular, the thesis discusses the retirement and old age recommendations of the Taylor Committee, on which the author served. The vision is of universal coverage for the current state benefits augmented by mandatory employer based group schemes that offer disability, retirement and orphans' pensions. Means tests, the Road Accident Fund and workers' compensation arrangements would be abolished. The chapters of the thesis are each self-contained, having all been published in – or submitted to – journals, books or conferences. In each, an attempt has been made to review a broader literature than is normally used to discover the impact of some element of the benefit structure, governance or investment policies of retirement schemes on their members. In this context, it is considered to be particularly appropriate to test policies and governance against the standard of justice