@techreport{NBERw13088,
 title = "Global Currency Hedging",
 author = "John Y. Campbell and Karine Serfaty-de Medeiros and Luis M. Viceira",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13088",
 year = "2007",
 month = "May",
 URL = "http://www.nber.org/papers/w13088",
}