@techreport{NBERw13035,
 title = "Unbalanced Trade",
 author = "Robert Dekle and Jonathan Eaton and Samuel Kortum",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13035",
 year = "2007",
 month = "April",
 URL = "http://www.nber.org/papers/w13035",
}