Walmart gets its bite back

https://www.economist.com/node/21806372?fsrc=rss%7Cbus
IN THEORY THIS should be a good time to be Walmart, the doyen of American retailers that came of age in the stagflationary era of the 1970s. Inflation is back, yet no one knows better than the Beast of Bentonville how to use the power of the growl to convince suppliers to lower prices…