Other authors, such as Schieber and Shoven, suggest that the gradual peaking of the social security trust fund in the United States will occur around the 2007–2009 time period.
其餘作家，例如席貝爾（Schieber）和紹文（Shoven） 則認為美國的社會保障信託基金大約將會在2007-2009年間逐漸到達頂峰。