This PDF is a selection from a published volume from the National Bureau of Economic Research Volume Title: NBER Macroeconomics Annual 2010, Volume 25 Volume Author/Editor: Daron Acemoglu and Michael Woodford, editors Volume Publisher: University of Chicago Press Volume ISBN: 0-226-00213-6 Volume URL: http://www.nber.org/books/acem10-1 Conference Date: April 9-10, 2010 Publication Date: May 2011 Chapter Title: Comment on "Oil, Automobiles, and the U.S. Economy: How Much Have Things Really Changed?" Chapter Authors: Ariel Pakes Chapter URL: http://www.nber.org/chapters/c12038 Chapter pages in book: (p. 375 - 381)