The week was dominated by the annual results from Tesco, the UK's largest - and the world's third-biggest - retailer. Much of the focus was on comments from new CEO Philip Clarke, who was frank about the challenges the retailer faces at home and abroad. On our analysis pages, we looked at Tesco, the EU health claims process, the problems retailers face with out-of-stocks and Nestle's latest investment in China. Meanwhile, the news of the death of Pietro Ferrero, the joint CEO of confectioner Ferrero, saddended many in the industry.