@inbook{NBERc6420,
 Crossref = "NBERacem07-1",
 title = "Discussion of chapter 4",
 author = "",
 BookTitle = "NBER Macroeconomics Annual 2007, Volume 22",
 Publisher = "University of Chicago Press",
 pages = "295-297",
 year = "2008",
 month = "June",
 URL = "http://www.nber.org/chapters/c6420",
}
@book{NBERacem07-1,
 title = "NBER Macroeconomics Annual 2007, Volume 22",
 author = "Daron Acemoglu and Kenneth Rogoff and Michael Woodford",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2008",
 URL = "http://www.nber.org/books/acem07-1",
}