The Idea Gap in Pink and Black
---- Acknowledgements ----
The authors are grateful to Josh Lerner, Trevon Logan, and Rosemarie Ziedonis for insightful comments and to Ajay Agarwal, Bronwyn Hall, Bill Kerr, Fiona Murray, Paula Stephan, seminar participants at Duke University, Michigan State University, and NBER, and a number of inventors, firms, and interviewees for their helpful conversations. Funding from the National Bureau of Economic Research and Kauffman Foundation and from the Vice President for Research and Graduate Studies Fund at Michigan State University is gratefully acknowledged. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.