1. Demography Unit, Department of Sociology, Stockholm University, Stockholm, Sweden
2. Institute for Future Studies, Stockholm, Sweden; Åbo Akademi, Vaasa, Finland
3. Swedish Institute for Social Research, Stockholm University, Stockholm, Sweden
4. Department of Sociology, Turku University, Turku, Finland
5. Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, Solna, Sweden