---- Acknowledgments ----
We are extremely grateful to Yuri Berezkin for generously sharing his lifetime work on folklore classification and clarifying many of its aspects. We would like to thank Benjamin Enke, Rafael La Porta, Ernesto Dal Bo, Roland Bénabou, Paul Seabright and Max Winkler for their insightful comments. Seminar and workshop participants at George Washington, Bocconi University, Università Cattolica del Sacro Cuore, NBER Political Economy Meeting, New Economic School, New York University, Simon Fraser University, Tel Aviv University, Toulouse IAST, UC Berkeley, Universitat Pompeu Fabra, University of Chicago, University of Connecticut, and University of Zurich offered many useful suggestions. Rohit Chaparala, Masahiro Kubo, Xueyun Luo, Zhihan Wang, and Xiaochen Yan provided superlative research assistance. Melanie Meng Xue acknowledges financial support from Donorstrust, the Balzan Foundation and the Center for Economic History at Northwestern University. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.