Our lawyers are looking at every contract to see what impact it has for us to try and find some savings in those areas.

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And very successful at it it is too: it has about the same market impact as WalMart does in the US, some one eighth of all retail spending passing through its books.

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It is a noble goal that so far, at least, has achieved some measure of impact in terms of profits and social good.

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Some say, 'absolutely, of course, ' while others say it has no impact at all when you do that.

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It has divided opinion, with some people welcoming the idea and others claiming it would have a negative impact on other shops.

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