@inbook{NBERc0207,
 Crossref = "NBERjaff06-1",
 title = "Does Globalization of the Scientific/Engineering Workforce Threaten U.S. Economic Leadership?",
 author = "Richard B. Freeman",
 BookTitle = "Innovation Policy and the Economy, Volume 6",
 Publisher = "The MIT Press",
 pages = "123-158",
 year = "2006",
 month = "August",
 URL = "http://www.nber.org/chapters/c0207",
}
@book{NBERjaff06-1,
 title = "Innovation Policy and the Economy, Volume 6",
 author = "Adam B. Jaffe and Josh Lerner and Scott Stern",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "The MIT Press",
 year = "2006",
 URL = "http://www.nber.org/books/jaff06-1",
}