@inbook{NBERc11471,
 Crossref = "NBERglen90-1",
 title = "Are Large Shareholders Effective Monitors? An Investigation of Share Ownership and Corporate Performance",
 author = "Richard J. Zeckhauser and John Pound",
 BookTitle = "Asymmetric Information, Corporate Finance, and Investment",
 Publisher = "University of Chicago Press, 1990",
 pages = "149-180",
 year = "1990",
 month = "January",
 URL = "http://www.nber.org/chapters/c11471",
}
@book{NBERglen90-1,
 title = "Asymmetric Information, Corporate Finance, and Investment",
 author = "R. Glenn Hubbard",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press, 1990",
 year = "1990",
 URL = "http://www.nber.org/books/glen90-1",
}