NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Competition and Ideological Diversity: Historical Evidence from US Newspapers

Matthew Gentzkow, Jesse M. Shapiro, Michael Sinkinson

NBER Working Paper No. 18234
Issued in July 2012

---- Acknowledgements -----

We are grateful to Alan Bester, Ambarish Chandra, Tim Conley, Christian Hansen, Igal Hendel, Caroline Hoxby, Jon Levin, Kevin Murphy, Andrei Shleifer, E. Glen Weyl, and numerous seminar participants for advice and suggestions, and to our dedicated research assistants for important contributions to this project. This research was funded in part by the Initiative on Global Markets, the George J. Stigler Center for the Study of the Economy and the State, the Ewing Marion Kauffman Foundation, the Centel Foundation/Robert P. Reuss Faculty Research Fund, the Neubauer Family Foundation and the Kathryn C. Gould Research Fund, all at the University of Chicago Booth School of Business, the Social Sciences and Humanities Research Council of Canada, and the National Science Foundation. 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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