RT Serial T1 Working paper / National Bureau of Economic Research, Inc. T2 NBER working paper series LA English PP Cambridge, Mass. PB National Bureau of Economic Research, Inc. PP New York, N.Y. PB National Bureau of Economic Research, Inc. PP Stanford, CA PB Center for Economic Analysis of Human Behavior and Social Institutions, National Bureau of Economic Research, Inc. UL https://krimdok.uni-tuebingen.de/Record/182653137 CN 330 K1 Arbeitspapier K1 Graue Literatur K1 Monografische Reihe