@techreport{NBERw13111,
 title = "Are Shocks to the Terms of Trade Shocks to Productivity?",
 author = "Timothy J. Kehoe and Kim J. Ruhl",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13111",
 year = "2007",
 month = "May",
 URL = "http://www.nber.org/papers/w13111",
}