"The fact is Tesco is throwing a lot of promotional money and using a lot of offers to bring people back into the stores, " he told the BBC.

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Indeed, the expectation of this deal has already helped bring new money, a lot of it Chinese, into the UK's offshore assets.

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It costs a lot of money and it can bring up a lot of litigation.

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But any new solar technology takes a lot of time and money to develop and bring to mass production, and producing it in large volumes is crucial for lowering production costs.

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His campaign spent a lot of money (much of it his own) on lunches and parties to bring out his vote.

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