Tesco hikes prices before dropping them

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There are claims that Tesco's big price drop is not all that it seems. In the supermarket world where smoke and mirrors are as much a part of the furniture as trolleys and tills, researchers are claiming that Tesco didn't just cut its prices: it apparently put some of them up first, before dropping back sightly.

So in effect, in some cases it's more like the big price hike.