Learning-by-Producing and the Geographic Links Between Invention and Production: Experience From the Second Industrial Revolution
NBER Working Paper No. 12469
---- Acknowledgements -----
I am very grateful for insightful advice from Kenneth Sokoloff. I have also benefited from comments offered by Daniel Ackerberg, Naomi Lamoreaux, Shih-tse Lo, Mary MacKinnon, Jean-Laurent Rosenthal, and participants at presentations at the NBER, the EHA Meeting and the UCLA Economic History Seminars. Finally, I would like to thank Eileen Chou, Carolina Corral, Hong Tran and Jicky Trantrong for their excellent research assistance as well as the staffs at the Science, Technology and Patents Department, Los Angeles Public Library for their patience with my demanding use of the computing resources to access the USPTO on-line database.