NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Does Input Quality Drive Measured Differences in Firm Productivity?

Jeremy T. Fox, Valérie Smeets

NBER Working Paper No. 16853
Issued in March 2011

---- Acknowledgements -----

Fox thanks the National Science Foundation, the NET Institute, the Olin Foundation, and the Stigler Center for generous funding. Smeets gratefully acknowledges financial support from the Danish Council for Independent Research in Social Sciences and the Marie Curie Program of the European Commission (MEIF-2003-501280). Thanks to helpful discussions with Daniel Ackerberg, Allan Collard-Wexler, Ulrich Doraszelski, Tor Eriksson, Jan de Loecker, Amil Petrin, Chad Syverson, Johannes Van Biesebroeck, and Frédéric Warzynski. We appreciate remarks by seminar participants at Aarhus University, CAED, the Econometric Society, IIOC, Jornadas de Economia Industrial, NYU Stern and Texas A&M. Thanks to the professional staff at the Center for Corporate Performance for hospitality and for help integrating the KØB and IDA datasets. Our email addresses are jtfox@umich.edu and vas@asb.dk. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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