Bodie, Zvi and Robert C. Merton. “Pension Benefit Guarantees in the United States: A Functional Analysis.” In The Future of Pensions in the United States, edited by R. Schmitt. Philadelphia: University of Pennsylvania Press, 1993. (Reprinted in The Foundations of Pension Finance, Volume I, Zvi Bodie and E. Philip Davis, eds., Edward Elger, 2000.)