A new report from Loughborough University calls for an EU-wide code of practice for retailers enforced by the European Commission to stop large supermarkets squeezing manufacturers. The report says the top 10 European retailers account for 30% of grocery sales, an increase of 25% over the last six years. Report author Professor Dobson said: "Powerful positions in retail markets allow the key retail groups to take control of supply chains, dictating terms and conditions to suppliers, enabling them to gain further competitive advantage over smaller rivals, which, in turn, leads to further consolidation." {{NEWS }}