1. Abraham, K. S. (1985). Efficiency and fairness in insurance risk classification. Virginia Law Review, 71(3), 403–451.
2. Asworth, K., Cebulla, A., Greenberg, D., & Walker, R. (2004). Meta-evaluation: Discovering what works best in welfare provision. Evaluation, 10(2), 193–216.
3. Barr, N. (1992). Economic theory and the welfare state: A survey and interpretation. Journal of Economic Literature, 30(2), 741–803.
4. Barry, B. (1990). The welfare state versus the relief of poverty. In A. Ware & R. Goodin (Eds.), Needs and welfare (pp. 73–103). London, UK: Sage Publications.
5. Barry, B. (2002). Social exclusion, social isolation and the distribution of income. In J. Hills, J. Le Grand, & D. Piachaud (Eds.), Understanding social exclusion (pp. 13–29). Oxford, UK: Oxford University Press.