@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", abstract = {Laboratory experiments have been used extensively in economics in the past several decades to lend both positive and normative insights into a myriad of important economic issues. This study discusses a related approach that has increasingly grown in prominence of late--field experiments. I argue that field experiments serve as a useful bridge between data generated in the lab and empirical studies using naturally-occurring data. In discussing this relationship, I highlight that field experiments can yield important insights into economic theory and provide useful guidance to policymakers. I also draw attention to an important methodological contribution of field experiments: they provide an empirical account of behavioral principles that are shared across different domains. In this regard, at odds with conventional wisdom, I argue that representativeness of the environment, rather than representative of the sampled population, is the most crucial variable in determining generalizability of results for a large class of experimental laboratory games.}, }