Charter schools provide higher achievement for less money in eight cities, concludes a University of Arkansas study. “Public charter schools across eight major U.S. cities are 35 percent more cost-effective and produce a 53 percent higher return-on-investment (ROI) than residentially assigned government schools,” writes co-author Corey DeAngelis, a Cato Institute policy analyst. Charter students showed higher achievement, despite lower funding, in every city, he writes. Bost