@techreport{NBERw10040,
 title = "Do Democracies Have Different Public Policies than Nondemocracies?",
 author = "Casey B. Mulligan and Xavier Sala-i-Martin and Ricard Gil",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "10040",
 year = "2003",
 month = "October",
 URL = "http://www.nber.org/papers/w10040",
}