Walmart's big wage bump shows the economy is improving cdn0.vox-cdn.com/thumbor/h-Rf8fQz_fjHVNg7KXtKMbAEiaU=/158x0:1886x1152/1280x720/cdn0.vox-cdn.com/uploads/chorus_image/image/45725394/165275810.0.jpg Updated by Danielle Kurtzleben on February 19, 2015, 10:30 a.m. ET http://www.vox.com/2015/2/19/8068871/walmart-minimum-wage-pay