@inbook{NBERc9746, Crossref = "NBERfeld02-1", title = "Introduction to "The Distributional Aspects of Social Security and Social Security Reform"", author = "Martin S. Feldstein and Jeffrey B. Liebman", BookTitle = "The Distributional Aspects of Social Security and Social Security Reform", Publisher = "University of Chicago Press", pages = "1-10", year = "2002", month = "January", URL = "http://www.nber.org/chapters/c9746", } @book{NBERfeld02-1, title = "The Distributional Aspects of Social Security and Social Security Reform", author = "Martin Feldstein and Jeffrey B. Liebman", institution = "National Bureau of Economic Research", type = "Book", publisher = "University of Chicago Press", year = "2002", URL = "http://www.nber.org/books/feld02-1", }