According to a survey conducted by KantarRetail (a London based firm) in June 2012, Wal-Mart stores were out of stock on 14% items whereas Amazon had all its items in stock.
Kantar Worldpanel, the retail consultancy, published its findings on UK grocery market share in the six weeks to 23 December, showing till receipts up on 2011 by 3.2%, against grocery inflation of 4.5%.