Wal-Mart Stores Inc.’s online marketplace isn’t new. In 2009, Walmart began to allow other retailers to sell their products alongside the retail chain’s inventory on Walmart.com. Walmart built its marketplace slowly, starting with six merchants: eBags Inc., Wayfair Inc., Tool King LLC, Plumstruck, ShoeBuy Inc. (now owned by Walmart) and ProTeam. By early 2016 it had […]