Victor Chernozhukov, Jerry A. Hausman, Whitney K. Newey

NBER Working Paper No. 26424
Issued in November 2019

---- Acknowledgments ----

Research for this paper was supported by NSF Grant 1757140. Helpful comments were provided by R. Blundell, B. Deaner, Y. Gao, M. Harding, S. Hoderlein, M. Keene, and J. Shapiro. B. Deaner, Y Gao, M. Hardy, and K. Quist provided excellent research assistance. The empirical work here is researchers own analyses based in part on data from The Nielsen Company (US), LLC and marketing databases provided through the Nielsen Datasets at the Kilts Center for Marketing Data Center at The University of Chicago Booth School of Business. The conclusions drawn from the Nielsen data are those of the researchers and do not reflect the views of Nielsen, nor of the National Bureau of Economic Research. Nielsen is not responsible for, had no role in, and was not involved in analyzing and preparing the results reported herein.

---- Disclosure of Financial Relationships for Whitney K. Newey ----

Research for this paper was supported by NSF Grant 1757140. No other support to disclose.

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