We acknowledge the financial support from Fondazione Cariplo and University of Milan. The study was approved by the Ethics Committee of the University of Milano (Parere 7/25), and the Homewood IRB at Johns Hopkins University (HIRB00015374). We thank seminar participants at the Università di Verona, Université de Lausanne, Florence Behavioral Economics Conference, RFBerlin Migration Forum, the workshop on Behavioral Economics of Conspiracy Theories and Other (Un)Truths, and the European Commission’s Behavioral Insights Seminar Series for valuable comments. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.