@techreport{NBERw11150,
 title = "Understanding Rules of Origin",
 author = "Kala Krishna",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "11150",
 year = "2005",
 month = "February",
 URL = "http://www.nber.org/papers/w11150",
 abstract = {This paper surveys recent work on the economic effects, both theoretical and empirical, of Rules of Origin (RoO) in a Free Trade Area (FTA).},
}