@techreport{NBERw13027, title = "The Reliability of Subjective Well-Being Measures", author = "Alan B. Krueger and David A. Schkade", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "13027", year = "2007", month = "April", URL = "http://www.nber.org/papers/w13027", }