@techreport{NBERw8728,
 title = "Outsourcing in a Global Economy",
 author = "Gene M. Grossman and Elhanan Helpman",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "8728",
 year = "2002",
 month = "January",
 URL = "http://www.nber.org/papers/w8728",
}