@techreport{NBERw14012,
 title = "Explaining International Differences in Entrepreneurship: The Role of Individual Characteristics and Regulatory Constraints",
 author = "Silvia Ardagna and Annamaria Lusardi",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "14012",
 year = "2008",
 month = "May",
 URL = "http://www.nber.org/papers/w14012",
}