@inbook{NBERc10998,
 Crossref = "NBERblan93-1",
 title = "How High are the Giants' Shoulders: An Empirical Assessment of Knowledge Spillovers and Creative Destruction in a Model of Economic Growth",
 author = "Ricardo J. Caballero and Adam B. Jaffe",
 BookTitle = "NBER Macroeconomics Annual 1993, Volume 8",
 Publisher = "MIT Press",
 pages = "15-86",
 year = "1993",
 month = "January",
 URL = "http://www.nber.org/chapters/c10998",
}
@book{NBERblan93-1,
 title = "NBER Macroeconomics Annual 1993, Volume 8",
 author = "Olivier Blanchard and Stanley Fischer",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "MIT Press",
 year = "1993",
 URL = "http://www.nber.org/books/blan93-1",
}