@techreport{NBERw13159,
 title = "Happiness Adaptation to Income and to Status in an Individual Panel",
 author = "Rafael Di Tella and John Haisken-De New and Robert MacCulloch",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13159",
 year = "2007",
 month = "June",
 URL = "http://www.nber.org/papers/w13159",
}