@techreport{NBERw13883,
 title = "Changes in the Characteristics of American Youth: Implications for Adult Outcomes",
 author = "Joseph G. Altonji and Prashant Bharadwaj and Fabian Lange",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13883",
 year = "2008",
 month = "March",
 URL = "http://www.nber.org/papers/w13883",
}