Shoppers overcharged by up to 300%
The startling price differences support the assertion by former head of Dunnes Stores Ben Dunne that domestic chains are charging too much for basic goods.
Consumer groups were hopeful that calls by Mr Dunne for Dunnes Stores and Tesco to cut prices to ward off the challenge posed by low-cost German chains, Aldi and Lidl, would spark a supermarket price war.



