@inbook{NBERc5304,
 Crossref = "NBERjaff08-1",
 title = "Public Policy toward Patent Pools",
 author = "Josh Lerner and Jean Tirole",
 BookTitle = "Innovation Policy and the Economy, Volume 8",
 Publisher = "University of Chicago Press",
 pages = "157-186",
 year = "2008",
 month = "April",
 URL = "http://www.nber.org/chapters/c5304",
}
@book{NBERjaff08-1,
 title = "Innovation Policy and the Economy, Volume 8",
 author = "Adam B. Jaffe and Josh Lerner and Scott Stern",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2007",
 URL = "http://www.nber.org/books/jaff08-1",
}