17
22. “Justice Department Requires Knorr and Wabtec to Terminate Unlawful Agreements Not to Compete for
Employees.” Department of Justice, press release Apr. 3, 2018.; Hollister, Sean, “Steve Jobs personally asked
Eric Schmidt to stop poaching employees, and other unredacted statements in a Silicon Valley scandal.” The
Verge, Jan. 27, 2012, https://www.theverge.com/2012/1/27/2753701/no-poach-scandal-unredacted-steve-jobs-eric-
schmidt-paul-otellini.
23. Bishara, Norman D., Kenneth J. Martin, and Randall S. Thomas, “An Empirical Analysis of Noncompetition
Clauses and Other Restrictive Postemployment Covenants.” Vanderbilt Law Review, vol. 68, no. 1, 2015.
24. Greenhouse, Steven, “Non-compete Clauses Increasingly Pop Up in Array of Jobs.” New York Times, Jun. 8, 2014,
https://www.nytimes.com/2014/06/09/business/non-compete-clauses-increasingly-pop-up-in-array-of-jobs.
html.
25. Starr, Prescott, and Bishara, “Noncompetes in the U.S. Labor Force.” A smaller but more recent survey finds
similar numbers: Krueger and Posner, “ A Proposal for Protecting Low-Income Workers from Monopsony and
Collusion,” Hamilton Project Policy Proposal 2018-05. A last survey of workers in Utah finds similar numbers:
Cicero (2017), available at https://slchamber.com/noncompetestudy/.
26. For engineers, see: Marx, Matt, “The Firm Strikes Back: Non-Compete Agreements and the Mobility of Technical
Professionals.” American Sociological Review, vol. 76, no. 5, 2011, pp. 695-712. For physicians, see: Lavetti, Kurt,
Carol Simon, and William D. White, “The Impacts of Restricting Mobility of Skilled Service Workers: Evidence
from Physicians.” Journal of Human Resources, 2018. For hairstylists, see: Johnson, Matthew S., Michael Lipsitz,
“Why are Low-Wage Workers Signing Non-compete Agreements?” 2017.
27. According to Beck, Reed and Riden, the number of non-compete cases in 2000 was 527, compared to 993 in 2018.
See their year by year chart at https://www.faircompetitionlaw.com/wp-content/uploads/2019/01/Non-compete-
and-Trade-Secret-Cases-Survey-Graph-20190113-Data-and-Charts.jpg.
28. The Dyer’s case in 1414 is typically looked to as the first judgement against enforcing a non-compete. Review
available here: https://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?article=1189&context=bjell.
29. Gilson, R.J., 1999. “The legal infrastructure of high technology industrial districts: Silicon Valley, Route 128, and
covenants not to compete.” NYU Law Rev., 74, p.575.
30. See: http://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&URL=0500-0599/0542/
Sections/0542.335.html, Section (1)(g) of 542.335 Valid restraints of trade or commerce.
31. Shubber, Kadhim, “Cushman v the Cleaner: The fight over non-competes.” Financial Times, Oct. 16, 2018, https://
www.ft.com/content/b69d30-ce44-11e8-b276-b9069bde0956.
32. For evidence on the chilling effect of non-competes, see: Starr, Prescott, and Bishara, “Noncompetes in the U.S.
Labor Force.” For evidence on what individuals know about their state laws, see: Prescott, J.J., and Evan Starr,
“The Accuracy and Effects of Beliefs About Non-Compete Laws: Evidence from an Information Experiment.”
Working paper 2019.
33. Starr, Prescott, and Bishara, “Noncompetes in the U.S. Labor Force.”
34. These two studies are Starr, Prescott, and Bishara, “Noncompetes in the U.S. Labor Force.”; Marx, “The Firm
Strikes Back.”
35. For a summary of the issues with knowledge workers, see: Lobel, Orly and James Bessen, “Stop Trying to Control
How Ex-Employees Use Their Knowledge.” Harvard Business Review, Oct. 9, 2014, https://hbr.org/2014/10/stop-
trying-to-control-how-ex-employees-use-their-knowledge.
36. Starr, Prescott, and Bishara, “Noncompetes in the U.S. Labor Force.” In another study, physicians who agree to
non-competes were found to have 12% longer job spells than unbound physicians. See Lavetti, Simon, and White,
“The Impacts of Restricting Mobility.” Note that the Starr, Prescott, and Bishara study found that for the average
labor force participant, the effects of a non-compete on job tenure and the likelihood of leaving the industry are
not statistically different in states that do not enforce non-competes.
37. Balasubramanian, Natarajan, Jin Woo Chang, Mariko Sakakibara, Jagadeesh Sivadasan, and Evan Starr, “Locked
In? The Enforceability of Covenants Not to Compete and the Careers of High-Tech Workers.” US Census Bureau
Center for Economic Studies Paper No. CES-WP-17-09; Ross School of Business Paper No. 1339, Dec. 13, 2018.
38. For patent holders, see Marx, M., Strumsky, D. and Fleming, L., 2009. “Mobility, skills, and the Michigan non-
compete experiment.” Management Science, 55(6), pp.875-889. For executives, see Garmaise, Mark J., “Ties
that Truly Bind: Noncompetition Agreements, Executive Compensation, and Firm Investment.” The Journal
of Law, Economics, and Organization, vol. 27, no. 2, 2011, pp. 376-425. For tech workers, see Fallick, Bruce,
Charles A. Fleischman, and James B. Rebitzer, “Job-hopping in Silicon Valley: some evidence concerning the
microfoundations of a high-technology cluster.” The Review of Economics and Statistics vol. 88, no. 3, 2006, pp.
472-481. For workers on LinkedIn, see Jeffers, Jessica, “The Impact of Restricting Labor Mobility on Corporate
Investment and Entrepreneurship.” Working paper.