Policymakers pushing pension reforms have tended to justify changes on the basis that they would make systems more sustainable by lowering future spending on pensions. This is a rather narrow interpretation of sustainability that fails to consider that other fiscal programs may need to accommodate the impact of reforms that reduce pension system adequacy. In this light, this article argues that in order to correctly assess the sustainability of pension reforms, one needs to adopt a more holistic framework that encapsulates the interaction between pension system goals and constraints. In a number of countries, reforms focused solely on reducing future spending were followed by reforms that restored generosity. A holistic approach to assess pension sustainability could help limit this cycle of reform and increase trust in pension systems.

Europe's pensions landscape has changed dramatically since the 1990s. This paper tries to assess better the impact of these changes using a broad social sustainability framework. Pension wealth estimates for a variety of hypothetical cases are used to assess the ability of systems to alleviate poverty and maintain living standards, while setting out how reforms could change future costs and relative entitlements for different generations. By focusing on all prospective transfers rather than those at retirement and by looking into the interaction between entitlements and labour participation, this approach provides additional insights into the impact of reforms. Our estimates suggest that generosity has fallen significantly, but remains strong in many countries. However, moves to link benefits to contributions have raised adequacy concerns for certain groups and strengthened the need for longer careers. Although reforms have helped address fiscal challenges, in many countries pressures remain strong and further reforms are likely.

Since the 1990s reforms have changed substantially both the nature of state pension provision and the level of generosity. This article tries to assess the impact of these changes using estimates of pension wealth for a number of hypothetical cases. By focusing on all prospective pension transfers rather than just those at the point of retirement, this approach can provide additional insights, especially on the impact of changes in benefit indexation.These estimates corroborate existing evidence that reforms have decreased generosity significantly. Moves to link benefits to contributions have made systems less progressive, raising adequacy concerns for certain groups. The reforms have, in particular, strengthened the need of ensuring better access to labour markets, of having in place adequate crediting arrangements and minimum pensions.