"...just as Walmart forces stores that can't match their prices to shut their doors, so charters -- which bleed students, and their funding, from traditional schools -- cause local schools to close down..."

"In her book The Death and Life of the Great American School System: How Testing and Choice Are Undermining Education, education historian Diane Ravitch explores whether there is any "commonality between the Walmart business philosophy and the Walton funding of school choice." She likens the competition that charters pose to public schools to the competition that Walmart stores present to locally owned stores, and suggests parallel consequences: [see above]."

http://www.truth-out.org/news/item/35348-how-the-cutthroat-walmart-business-model-is-reshaping-american-public-education