@inbook{NBERc6245,
 Crossref = "NBERfeld98-1",
 title = "Introduction to "Privatizing Social Security"",
 author = "Martin Feldstein",
 BookTitle = "Privatizing Social Security",
 Publisher = "University of Chicago Press",
 pages = "1-29",
 year = "1998",
 month = "January",
 URL = "http://www.nber.org/chapters/c6245",
}
@book{NBERfeld98-1,
 title = "Privatizing Social Security",
 author = "Martin Feldstein",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1998",
 URL = "http://www.nber.org/books/feld98-1",
}