January saw the shock announcement UK retailer Tesco wants to acquire the country's largest wholesaler, Booker, in a deal that looks set to ruffle feathers in the sector. Carrefour investors speculated over who could be next to head-up the world's second largest retailer. Meanwhile, in the US, retail giants Wal-Mart and Amazon announced job creation plans. Here are some of the highlights from the retail sector over the past month.