NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

The Reorganization of Inventive Activity in the United States during the Early Twentieth Century

Naomi R. Lamoreaux, Kenneth L. Sokoloff, Dhanoos Sutthiphisal

NBER Working Paper No. 15440
Issued in October 2009

---- Acknowledgements -----

We would like to express our thanks to Oana Ciobanu, Shogo Hamasaki, Scott Kamino, and Ludmila Skulkina for their able research assistance, to Yun Xia for his help with programming, and above all to Shih-tse Lo for his comments and other assistance. We have also benefited from comments by Michael Darby, Rochelle Dreyfuss, Harry First, Paul Israel, Dan Kevles, Tom Nicholas, Ariel Pakes, Ross Thomson, Lynn Zucker, participants in seminars at the NYU Law School, UC Merced, and UCLA’s Anderson School of Management, and members of the audience at the UCLA conference in honor of Kenneth Sokoloff in November 2008 and at the 2009 World Economic History Congress in Utrecht. We also gratefully acknowledge the financial support provided by the Social Sciences and Humanities Research Council of Canada (SSHRC), Le Centre interuniversitaire de recherche en économie quantitative (CIREQ) in Montréal, the Harold and Pauline Price Center for Entrepreneurial Studies at the UCLA Anderson School of Management, and the UCLA Center for Economic History. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.

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