@techreport{NBERw12095,
 title = "Sticky Borders",
 author = "Gita Gopinath and Roberto Rigobon",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12095",
 year = "2006",
 month = "March",
 URL = "http://www.nber.org/papers/w12095",
}