1. Ainsaar, M. (2012). Children in the family and welfare state attitudes: Altruism or self-interest? In H. Ervasti, J. G. Andersen, T. Fridberg, & K. Ringdal (Eds.), Future of the welfare state. Social policy attitudes and social capital in Europe (pp. 88–106). Cheltenham: Edward Elgar.
2. Baird, D. T., Collins, J., Evers, J. L. H., Leridon, H., Lutz, W., te Velde, E., et al. (2010). Europe the continent with the lowest fertility. Human Reproduction Update, 16(6), 590–602.
3. Björklund, A. (2006). Does family policy affect fertility? Journal of Population Economics, 19(3), 3–24.
4. Bloom, D. E., & Canning, D. (2008). Global demographic change: Dimensions and economic significance. Population and Development Review, 34, 17–51.
5. Brooks, C., & Manza, J. (2006). Why do welfare states persist? The Journal of Politics, 68(4), 816–827.