Netto claims to have won Britain's grocery price war. The hard discounter has unveiled an instore campaign using posters boasting that Netto win price war' and No-one beats Netto prices'. Netto is also claiming it is "up to 52% cheaper". Price comparisons between food retailers have become increasingly controversial. Tesco was censured in the autumn by the Advertising Standards Authority for claiming it was Britain's cheapest supermarket. The ASA does not cover claims on instore signs, but trading standards liaison officer Trevor Gray said: "We would like to know what sort of evidence Netto has to substantiate these claims. It has not sought our advice. "This is something we could address under the Consumer Protection Act." Netto non foods buying director John Buitekant insisted the signs were not pinpointed at any of its competitors. He added: "Our own prices in 2001 were 52% cheaper than they were in 2000. We will continue to cut prices as that is what our customers want us to do." Netto manages to keep its prices down as it only carries 1,000 lines using an "80/20 rule" said Buitekant. The theory is that 80% of sales come from 20% of products, and so Netto only sells that 20%. {{NEWS }}