NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Counterfeiters: Foes or Friends? How Do Counterfeits Affect Different Product Quality Tiers?

Yi Qian

NBER Working Paper No. 16785
Issued in February 2011

---- Acknowledgements -----

I warmly acknowledge support from Kauffman Foundation grants. I am grateful to Josh Lerner, Eric Anderson, Philippe Aghion, Meghan Busse, Shane Greenstein, Angela Lee, Jin Li, Keith Maskus, Ivan Png, Scott Stern, Catherine Tucker, K. Sudhir, and Florian Zettlemeyer for helpful discussions; and to seminar participants at the Kellogg School of Management, Yale School of Management, University of Colorado, and Quantitative Marketing and Economics conference for comments. I thank Dr. Ting Zhu for sharing eBay data. I thank Gina Buonaguro, Maja Kos, and Sachin Waikar for copy-editing. Cooperation from the Chinese Quality and Technology Supervision Bureau (QTSB) and the companies I interviewed and surveyed is gratefully acknowledged. The results in this paper do not necessarily represent the views of QTSB or NBER.

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