The Role of Theory in Field Experiments
---- Acknowledgements -----
We thank for helpful comments the editors, as well as Oriana Bandiera, Iwan Barankay, Glenn Harrison, Matthew Rabin, David Reiley, and participants in Berkeley, at the Wharton Conference on Field Experiment, and at the 2011 ASSA conference in Denver. We thank Ivan Balbuzanov, Xiaoyu Xia, and a very dedicated group of undergraduate students for excellent research assistance. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.