@techreport{NBERw0363,
 title = "Can Productive Capacity Differentials Really Explain Earnings Differentials Associated with Demographic Characteristics? Case of Experience",
 author = "James L. Medoff and Katharine G. Abraham",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "363",
 year = "1981",
 month = "September",
 URL = "http://www.nber.org/papers/w0363",
}