@techreport{NBERw12992,
 title = "Field Experiments:  A Bridge Between Lab and Naturally-Occurring Data",
 author = "John A. List",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12992",
 year = "2007",
 month = "March",
 URL = "http://www.nber.org/papers/w12992",
}