Immigration and the Diffusion of Technology: The Huguenot Diaspora in Prussia∗ Erik Hornungy Ifo, Munich August 2, 2010 Abstract This paper analyzes the long-term effect of technological diffusion on pro- ductivity caused by immigration of skilled workers. In 1685 religious per- secution drove highly skilled Huguenots into the backward Brandenburg- Prussia where they established themselves and transferred technological knowledge to natives. We find that textile manufactories installed in towns hosting the Huguenots achieved higher productivity than others due to diffusion, even 100 years after immigration. Identification is based on an instrumental variable approach exploiting variation in the settle- ment of Huguenots which results from population losses due to plagues during the Thirty Years’ War, effectively eliminating worries of selectivity in the settlement pattern. Keywords: Migration, Technological Diffusion, Human capital, Huguenots, Prussian economic history JEL classification: N33, O15, O33, F22 Preliminary - not for circulation ∗Comments from Sascha O. Becker, Davide Cantoni, Francesco Cinnirella, Oliver Falck, Guido Schwerdt, Ludger Woessmann and seminar participants at Ifo Munich, the Spring Meeting of Young Economists 2010 and the annual conference of the European Society for Population Economics 2010 are gratefully acknowledged. This work was financially support by the Pact for Research and Innovation of the Leibniz Association and an Economic History Association Exploratory Travel and Data Grant 2009. Andrea Hohenadl provided capable research assistance. yIfo Institute for Economic Research, Poschingerstr. 5, 81679 Munich, Germany;
[email protected] 1 1 Introduction In his principal work Friedrich List(1856) revisited some of the policies utilized by a backward economy (his native Germany) to achieve economic growth and to catch-up to the leading country (the technological frontier).