8Amenta, E.,Bonastia, C. & Caren, N. USSocial Policy in Comparative and Historical Perspective :Concepts,Images,Arguments,and Research Strategies[J]. Annual Review of Sociology, 2001,Vol. 27,pp.213 -234.
9Bengtsson T. & Scott K. Population aging andthe future of the welfare state : the example of Sweden[J]. Population And Development Review, 2011, Vol. 37(1),pp. 158 -70.
10Brady, D.,Seeleib - Kaiser, M. & Beck-field,J. Economic Globalization and the Welfare State inAffluent Democracies: 1975 -2001 [J]. American Socio-logical Review, Vol. 70,No. 6 (Dec.,2005),pp. 921-948.