Scientific American: Halloween decorations have been taken down, costumes have been stowed away and all of the candy corn has been eaten. Americans are now preparing for their next major holiday—Black Friday. Black Friday is the unofficial official name for the day after Thanksgiving. On this day retailers proclaim the More

The New York Times:  WHEN marketing researchers at the University of Pennsylvania’s Wharton School rigged shopping carts at a major East Coast supermarket with motion-tracking radio-frequency tags, they unwittingly stumbled on a metaphor for our path through the aisles of life. Route data from more than 1,000 shoppers, matched to More

New York Magazine: Welcome to the weirdness of tipping in America. It carries with it such a strong psychological pull that many consumers are unwilling to abandon it, and in light of recent estimates that 58 percent of a server’s income comes from tips, it seems as though there are considerable economic issues to untangle before More