См., например: Brian Headd, “Redefining Business Success: Distinguishing Between Closure and Failure.” Journal Small Business Economics. 1 (1) (2004): 51–61; Knaup, Amy E. “Survival and Longevity in the Business Employment Dynamics data.” Monthly Labor Review. Vol. 128, Iss. 5, (May 2005): 50–56; US Small Business Administration, “Frequently Asked Questions About Small Business,” (2009) .