@inbook{NBERc13684,
 Crossref = "NBERmoff-3",
 title = "Front matter and Preface to "Economics of Means-Tested Transfer Programs in the United States, Volume 2"",
 author = "Robert A. Moffitt",
 BookTitle = "Economics of Means-Tested Transfer Programs in the United States, Volume 2",
 Publisher = "University of Chicago Press",
 year = "2015",
 month = "September",
 URL = "http://www.nber.org/chapters/c13684",
}
@book{NBERmoff-3,
 title = "Economics of Means-Tested Transfer Programs in the United States, Volume 2",
 author = "Robert A. Moffitt",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2016",
 doi = {10.7208/chicago/9780226392523.001.0001},
 URL = "http://www.nber.org/books/moff-3",
}