@techreport{NBERw12748,
 title = "Emergence and Persistence of Inefficient States",
 author = "Daron Acemoglu and Davide Ticchi and Andrea Vindigni",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12748",
 year = "2006",
 month = "December",
 URL = "http://www.nber.org/papers/w12748",
}