@techreport{NBERw13653, title = "Personnel Economics: The Economist's View of Human Resources", author = "Edward P. Lazear and Kathryn L. Shaw", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "13653", year = "2007", month = "November", URL = "http://www.nber.org/papers/w13653", }