1. Google Trends, https://goo.gl/V8yiac.

  2. “What Is a Charter School?” (National Charter School Resource Center), https://perma.cc/8B9K-KTAN.

  3. “A Growing Movement: America’s Largest Charter School Communities” (National Alliance for Public Charter Schools, 2015), https://perma.cc/88KT-83CU.

  4. “Pupil Membership History” (Michigan Senate Fiscal Agency, Jan. 11, 2018), https://perma.cc/5J39-8Z4L.

  5. Author’s calculations based on data provided publicly by the Center for Educational Performance and Information.

  6. “Charter School Performance in Michigan” (Stanford University: Center for Research on Education Outcomes, Jan. 11, 2013), https://perma.cc/FDP2-RJW8.

  7. Julian R. Betts and Y. Emily Tang, “The Effect of Charter Schools on Student Achievement:a Meta-Analysis of the Literature,” (Center for Reinventing Public Education, August 2014), https://perma.cc/B5UX-KUN2.

  8. Meagan Batdorff et al., “Charter School Funding: Inequity’s Next Frontier” (Thomas B. Fordham Institute, August 2005), https://perma.cc/9GEH-M723; Meagan Batdorff, Larry Maloney and Jay May, “Charter School Funding: Inequity Persists” (Ball State University, May 2010), https://perma.cc/7RQ4-VM43; Meagan Batdorff et al., “Charter School Funding: Inequity Expands” (University of Arkansas, April 2014), https://perma.cc/8PNF-FRKB; Patrick J. Wolf et al., “Charter School Funding: Inequity in the City” (University of Arkansas, May 2017), https://perma.cc/Y52T-JPPJ.

  9. Patrick J. Wolf et al., “The Productivity of Public Charter Schools” (University of Arkansas, July 2014), https://perma.cc/KGL2-XYK2.

  10. Data is acquired from the Michigan Department of Education as part of the National Public Education Finance Survey. Report is available online here: http://www.mackinac.org/depts/epi/ fiscal.aspx.

  11. MCL § 380.501.

  12. “Michigan Public High School Context and Performance Database” (Mackinac Center for Public Policy, 2016), https://www.mackinac.org/depts/epi/performance.aspx.

  13. Patrick J. Wolf et al., “The Productivity of Public Charter Schools” (University of Arkansas, July 2014), https://perma.cc/KGL2-XYK2.

  14. Eric A. Hanushek, “The Economic Value of Higher Teacher Quality,” Economics of Education Review 30 (2011): 466–479, https://perma.cc/T6DM-DTZM.

  15. “Occupational Employment Statistics” (Bureau of Labor Statistics, March 31, 2017), https://perma.cc/DQZ5-8T6W.

  16. Patrick J. Wolf et al., “Charter School Funding: Inequity in the City” (University of Arkansas, May 2017), https://perma.cc/Y52T-JPPJ; Meagan Batdorff, Larry Maloney and Jay May, “Charter School Funding: Inequity Persists” (Ball State University, May 2010), https://perma.cc/7RQ4-VM43; Meagan Batdorff et al., “Charter School Funding: Inequity Expands” (University of Arkansas, April 2014), https://perma.cc/8PNF-FRKB.

  17. Ben DeGrow, “More to Charter Special Ed Gap than Meets the Eye” (Mackinac Center for Public Policy, Sept. 20, 2016), https://perma.cc/953K-TPZP.

  18. This file is available here: https://goo.gl/QKfZQZ