@techreport{NBERw13983,
 title = "Technology Capital and the U.S. Current Account",
 author = "Ellen R. McGrattan and Edward C. Prescott",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13983",
 year = "2008",
 month = "May",
 URL = "http://www.nber.org/papers/w13983",
}