The State of American Entrepreneurship: New Estimates of the Quality and Quantity of Entrepreneurship for 32 US States, 1988-2014

Previously circulated as "The State of American Entrepreneurship: New Estimates of the Quantity and Quality of Entrepreneurship for 15 US States, 1988-2014." We are thankful for comments and suggestions by Marianne Bertrand, Erik Brynjolffson, Ankur Chavda, Catherine Fazio, Joshua Gans, John Haltiwanger, Bill Kerr, Fiona Murray, Abhishek Nagaraj, Roberto Rigobon, David Robinson, and Hal Varian, as well as seminar and conference participants at Duke University, Harvard Business School, University of Toronto, the University of Virginia, the Kauffman Foundation New Entrepreneurial Growth Conference, and the NBER Pre-Conference on Entrepreneurship and Economic Growth, and to four anonymous referees. We also thank Open Corporates for providing data for New York and Michigan, and RJ Andrews for his development of the visualization approach. Sarah Andries, Jintao Chen, Ji Seok Kim, and Yupeng Liu provided excellent research assistance. Finally, we acknowledge and thank the Jean Hammond (1986) and Michael Krasner (1974) Entrepreneurship Fund and the Edward B. Roberts (1957) Entrepreneurship Fund at MIT, and the Kauffman Foundation for financial support. All errors and omissions are of course our own. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

• March 15, 2016