found online by Raymond
From conservative James Wigderson at Wisconsin Watchdog:
Michael Ford of the University of Wisconsin-Oshkosh and Fredrik Andersson of the University of Wisconsin-Milwaukee studied the Milwaukee Parental Choice Program to see what causes schools that participate in the program to close. Between 1991 and 2015, 41 percent of private voucher schools in Milwaukee failed. In an interview, Ford explains what the study found and the implications for policy makers and parents.