NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Long-Run Impacts of Unions on Firms: New Evidence from Financial Markets, 1961-1999

David Lee, Alexandre Mas

NBER Working Paper No. 14709
Issued in February 2009

---- Acknowledgements -----

We thank Jonathan Berk, David Card, John DiNardo, Lawrence Katz, Morris Kleiner, Robert Moffitt, Jesse Rothstein, Eric Verhoogen, Hans-Joachim Voth, and numerous seminar participants for helpful suggestions. Emily Buchsbaum, Mariana Carrera, Elizabeth Debraggio, Briallen Hopper, Sanny Liao, Xiaotong Niu, Zhuan Pei, Andrew Shelton, and Fanyin Zheng provided outstanding research assistance. We gratefully acknowlege research support from the Center for Economic Policy Studies at Princeton University. 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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