2007
Thomas Juster, Honggao Cao, Mick Couper, Daniel Hill, Michael Hurd, Joseph Lupton, Michael Perry, James Smith
Michigan Retirement and Disability Research Center Research Paper, Michigan Retirement and Disability Research Center, University of Michigan, 2007
2002
Thomas Juster, Joseph Lupton, Honggao Cao
Ann Arbor, MI, The University of Michigan, Michigan Retirement Research Center, 2002
2001
Robert Barsky, John Bound, Kerwin Charles, Joseph Lupton
University of Michigan, 2001