@techreport{NBERw12657,
 title = "Was the Wealth of Nations Determined in 1000 B.C.?",
 author = "Diego Comin and William Easterly and Erick Gong",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12657",
 year = "2006",
 month = "October",
 URL = "http://www.nber.org/papers/w12657",
}