In a Sept. 21 "Press Box," Jack Shafer mistakenly referred to "median" income household in two paragraphs. The correct description is "middle" income households.

In a Sept. 17 "Moneybox" about companies that release bad news on Fridays, Daniel Gross incorrectly identified Joshua Pollet as a professor at the University of Illinois at Chicago. In fact, Pollet is a professor at the University of Illinois at Urbana-Champaign.

In a Sept. 16 "Mixing Desk," Jody Rosen described the group Sum 41 as American. Sum 41 is actually Canadian.

If you believe you have found an inaccuracy in a Slate story, please send an e-mail to corrections@slate.com, and we will investigate. General comments should be posted in "The Fray," our reader discussion forum.