This book develops a philosophical rationale for the social dimension, in the context of retirement. It identifies the ways in which specific forms of privatisation promote outcomes that are consistent with the social dimension, whilst acknowledging the possibility of market failure. In addition, the work seeks to provide an agenda for reform, based on robustly developed normative arguments, and a careful appraisal of the evidence. In recent decades, there has been a discernable shift away from the public pensions model towards a reliance on the non-state sector to administer retirement schemes, a development that is regarded with dismay by many social security scholars. Their accepted wisdom holds that contemporary welfare restructuring in the 'developed' countries and elsewhere has been driven by 'neoliberalism', which endorses the 'residual' approach to retirement-income-protection. However, the diverse pension arrangements that are examined in this volume suggest that this accepted wisdom is, at the very least, questionable.