Adoption Curves and Social Interactions
---- Acknowledgements -----
This paper has been written in memory of Antoni Calvo-Armengol. The research has been supported by the National Science Foundation grant SES-0518274 and University of Wisconsin Vilas Trust and Graduate School. Thanks to Bryan Graham, Harald Uhlig and seminar participants at the memorial conference for Antoni Calvo-Armengol and the University of Chicago for very helpful comments on a previous draft. Nonarit Bisonyabut and Xiangrong Yu have provided superb research assistance. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.