8/9/16 Another study, this time from Michigan, showing that proliferation of charter schools has harmed the remaining public schools. http://www.metrotimes.com/Blogs/archives/2016/07/18/study-the-proliferation-of-charter-schools-in-michigan-hurt-traditional-districts; http://www.education.msu.edu/epc/library/papers/documents/WP51-Which-Districts-Get-Into-Financial-Trouble-Arsen.pdf and an interview Jeff Bryant with an author: https://www.washingtonpost.com/news/answer-sheet/wp/2016/07/15/how-charter-schools-in-michigan-have-hurt-traditional-public-schools-new-research-finds/

Bryant’s quote from the interview: “We saw very significant and large impacts of charter penetration on district fund balances for different thresholds, whether there were 15, 20 or 25 percent of the students going to charter schools. That was really striking. At every one of those thresholds, the higher the charter penetration, the higher the adverse impact on district finances. They’re big jumps, and they’re all very significant statistically. What’s clear is that when the percentage gets up to the neighborhood of 20 percent or so, these are sizeable adverse impacts on district finances.”