Osborne, David. 1988. Laboratories of Democracy. Cambridge: Harvard Business School Press.
Perkins, Frances. 1962. “The Roots of Social Security,” a talk delivered at the Social Security Administration, Baltimore, MD (October 23). Accessed via www.ssa.gov/history/ perkins5.html.
Peterson, Paul. 1995. The Price of Federalism. Washington, D.C.: Brookings Institution.
Pierson, Paul. 1995. “The Nationalization of Income Transfers in the United States, 1935-94.” In European Social Policy: Between Fragmentation and Integration, edited by Stephan Leibfried and Paul Pierson, 301-28. Washington, D.C.: Brookings Institution.
idem. 2000. “Increasing Returns, Path Dependence, and the Study of Politics.” American Political Science Review 94, 2: 251-67.
idem and Stephan Leibfried. 1995. “Multitiered Institutions and the Making of Social Policy.” In European Social Policy: Between Fragmentation and Integration, edited by Leibfried and Pierson, 1-40. Washington, D.C.: Brookings Institution.
Reede, Arthur H. 1947. Adequacy of Workmen s Compensation. Cambridge: Harvard University Press.
Robertson, David Brian. 1989. “The Bias of American Federalism: The Limits of Welfare-State Development in the Progressive Era.” Journal of Policy History 1, 3: 261-91.
Rochefort, David A. and Roger W. Cobb (eds.). 1994. The Politics of Problem Definition: shaping the policy agenda. Lawrence: University Press of Kansas.
Rubinow, I. M. 1934. The Quest for Security. New York: Henry Holt and Company.
Schlabach, Theron F. 1969. Edwin E. Witte: Cautious Reformer. Madison: State Historical Society of Wisconsin.
Shor, Glenn Merrill. 1990. The Evolution of Workers Compensation in California, 1911-1990 (Ph.D. dissertation). Berkeley: University of California.
Skocpol, Theda. 1992. Protecting Soldiers and Mothers: The Political Origins of Social Policy in the United States. Cambridge: Harvard University Press.
idem. 1995. Social Policy in the United States: Future Possibilities in Historical Perspective. Princeton: Princeton University Press.