Charters haven’t bled funds from Boston schools, study shows

BOSTON – Criticism that charter schools divert money away from Boston's district schools obscures what has actually occurred, according to a study from an independent research organization, deflating a rallying cry used by opponents of expanding the number of the privately run, publicly funded institutions in the city.
But instead of charters, the biggest drain on Boston's school budget is overcapacity and the district's "failure to reduce seats in a timely manner," a problem that cost the city at least $21.5 million in fiscal 2015 alone, the study from the Boston Municipal Research Bureau asserts.