30 November 2012 Last updated at 13:42
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Supermarkets agree to end 'yo-yo pricing' with new code
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Eight supermarkets have agreed to ensure that special offers and price promotions are fair.
The Office of Fair Trading (OFT) has been investigating the way prices are displayed, advertised and promoted in stores.
It raised concerns about prices being artificially inflated to make later discounts look more attractive.
The major UK supermarkets have now agreed to adopt a set of principles drawn up by the OFT.
More @ bbc.co.uk/news