Archived from the original (PDF) on 2011-09-27. Cite web URL http://www.be.wvu.edu/divecon/econ/Sobel/All%20Pubs%20PDF/Institutions,%20Entrepreneurship,%20and%20Regional%20Differences%20in%20Economic%20Growth.pdf Title Institutions, Entrepreneurship, and Regional Differences in Economic Growth Last name Hall First name Joshua C. Last name 2 Sobel First name 2 Russell S. Source date March 2008 Pages 69–96 Archive URL https://web.archive.org/web/20110927162120/http://www.be.wvu.edu/divecon/econ/Sobel/All%20Pubs%20PDF/Institutions,%20Entrepreneurship,%20and%20Regional%20Differences%20in%20Economic%20Growth.pdf Archive date 2011-09-27 ↑ Stangler, Dane (April 17, 2013). "U.S. Entrepreneurial Activity: Why The Falling Startup Rate Could Be A Good Sign".