@inbook{NBERc0503,
 Crossref = "NBERdunn05-1",
 title = "Comment on "The Impact of Trade on Plant Scale, Production-Run Length and Diversification"",
 author = "James Tybout",
 BookTitle = "Producer Dynamics: New Evidence from Micro Data",
 Publisher = "University of Chicago Press",
 pages = "593-595",
 year = "2009",
 month = "January",
 URL = "http://www.nber.org/chapters/c0503",
}
@book{NBERdunn05-1,
 title = "Producer Dynamics: New Evidence from Micro Data",
 author = "Timothy Dunne and J. Bradford Jensen and Mark J. Roberts",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2009",
 URL = "http://www.nber.org/books/dunn05-1",
}