This trend is likely to continue because the number of exceptionally wealthy individuals is increasing arithmetically.

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The larger the student:teach ratio is, the more difficult it becomes (exponentially not arithmetically BTW).

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This raised the debt ratio, arithmetically, by nearly five percentage points, simply by shrinking the denominator.

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Arithmetically, higher government saving and a bigger external deficit imply a further fall in private net saving.

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Malthus famously argued that in a world in which economies grew arithmetically and population grew geometrically, mass want would be inevitable.

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An arithmetically increasing workforce plus arithmetically increasing productivity will do the trick.

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It is arithmetically possible for the Conservatives to beat a combined Labour-Lib Dem vote, if enough of the smaller parties back them.

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Populations grow, he said, geometrically, but wealth only grows arithmetically.

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But arithmetically, it's nowhere near enough to re-balance the economy, especially when domestic investment is still weak, and the income we earn from our investments abroad has fallen off a cliff.

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