The reform of pension systems is arguably one of the key challenges for social policy in Europe in the context of demographic change. It has been very high on the policy agenda across all EU Member States, and in Norway, in recent years. While several countries introduced pension reforms over a decade ago, the economic crisis and the ensuing debt crisis have prompted a further wave of reform. These have largely concentrated on the sustainability of public pensions and on raising the effective retirement age, with some changes proving very controversial. This report provides an overview of the involvement of the social partners in pension reforms adopted since 2008 across the EU27, as well as in Norway. It focuses particularly on the influence of the social partners on the outcomes of the reform processes. Read more in the report - see Related content.