Chicago Sun-Times (Editorial, July 6) -- "In a global knowledge economy, Illinois’ future relies on a highly educated workforce whose ideas can be transformed into jobs and revenue. Of the 20,000 or so students who graduate each year from one of the three University of Illinois campuses, 70 percent remain in the state. A 2015 study by the Idaho firm Economic Modeling Specialists International concluded that for every dollar taxpayers spend on the University of Illinois, they earn an average annual return of 19.3 percent. Try getting that kind of average return in your 401K."