@techreport{NBERw13395,
 title = "Realizing the Gains From Trade: Export Crops, Marketing Costs, and Poverty",
 author = "Jorge Balat and Irene Brambilla and Guido Porto",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13395",
 year = "2007",
 month = "September",
 URL = "http://www.nber.org/papers/w13395",
}