It “perfected the big box format” and “makes excellent use of supply chain data” to “provide exceptional value”. Now it’s adding new formats, such as Neighbourhood Markets and Express stores in areas not conducive to its larger outlets. The result is “strong growth” in the US (up 3.6%, and Sam’s Club up 4.7%). And Walmart is “increasingly flexible in international markets”, with its 20% expansion in Canada last year the pick of the bunch. 

See the complete list of the World’s 50 Best Grocers.