@inbook{NBERc11602,
 Crossref = "NBERclot08-1",
 title = "What Does Global Expansion of Higher Education Mean for the United States?",
 author = "Richard B. Freeman",
 BookTitle = "American Universities in a Global Market",
 Publisher = "University of Chicago Press",
 pages = "373-404",
 year = "2010",
 month = "May",
 URL = "http://www.nber.org/chapters/c11602",
}
@book{NBERclot08-1,
 title = "American Universities in a Global Market",
 author = "Charles T. Clotfelter",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2010",
 URL = "http://www.nber.org/books/clot08-1",
}