NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Can Higher Prices Stimulate Product Use? Evidence from a Field Experiment in Zambia

Nava Ashraf, James Berry, Jesse M. Shapiro

NBER Working Paper No. 13247
Issued in July 2007

---- Acknowledgements -----

We are grateful to Gary Becker, Stefano DellaVigna, Dave Donaldson, Erik Eyster, Matthew Gentzkow, Jerry Green, Ali Hortaçsu, Emir Kamenica, Dean Karlan, Larry Katz, Michael Kremer, Stephen Leider, Steve Levitt, John List, Kevin M. Murphy, Sharon Oster, Amil Petrin, Matt Rabin, Mark Rosenzweig, Peter Rossi, Al Roth, Philipp Schnabl, Andrei Shleifer, Richard Thaler, Jean Tirole, Tom Wilkening, Jonathan Zinman, and seminar participants at the Harvard Business School, the University of Chicago, the Massachusetts Institute of Technology, the London School of Economics, the Paris-Jourdan Sciences Economiques, the Institut d'Economie Industrielle, Toulouse, the UQAM/CIPREE Conference on Development Economics, Yale University, Washington University in St. Louis, and Princeton University for helpful comments and Rob Quick at the Centers for Disease Control for his guidance on the technical aspects of water testing and treatment. We wish to thank Steve Chapman, Research Director of Population Services International D.C., for his support, and the Society for Family Health in Zambia for coordinating the fieldwork, particularly Richard Harrison and T. Kusanthan, as well as Cynde Robinson, Esnea Mlewa, Muza Mupotola, Nicholas Shiliya, Brian McKenna, and Sheena Carey de Beauvoir. Marie-Hélène Cloutier provided outstanding assistance with our in-depth interviews on alternative uses of Clorin, and Kelsey Jack provided numerous insights based on her field experience. We gratefully acknowledge financial support from the Division of Faculty Research and Development at Harvard Business School. E-mail: nashraf@hbs.edu, jimberry@mit.edu, jmshapir@uchicago.edu. 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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