1. J. D. Stephens, E. Huber and L. Ray, The Welfare State in Hard Times, Continuity and Change in Contemporary Capitalism, Cambridge: Cambridge University Press, 1999.
2. B. Jessop, State Theory: Putting the Capitalist State in Its Place, Cambridge: Polity Press, 1996.
3. The Economist, “Northern Lights,” 02 February 2013. [Online]. Available: http://www.economist.com/news/special-report/21570840-nordic-countries-are-reinventing-their-model-capitalism-says-adrian.
4. R. Nozick, Anarchy, state, and utopia, New York: Basic Books, 1974.
5. A. Alesina and E. L. Glasear, Fighting Poverty in the US and Europe: a world of difference, Oxford: Oxford University Press, 2004.