U.S. and Canada put together is 18%, so I have a big concentration of people there.

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The concentration of big firms is unmatched as well.

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It commands the country's sole concentration of big wealth.

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The issue of concentration will also be big, as the hostile bid would go against the trend of fragmentation in the stock market.

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With such a big lead, Warrington inevitably lost concentration and were punished with two tries in as many minutes by McGuinness and Brocklehurst, but Clarke's converted try took the Wolves to 50 points.

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On concentration, the claim is that big bank assets constitute a larger portion of all bank assets than ever.

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One obvious explanation for the overwhelming Democratic majorities in big cities is the Curley effect with the corresponding concentration of Democratic constituencies like welfare recipients and unions, but there is more to it than that.

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Across the Kattegat, in Denmark, late at night on November 7th, a gang of about 50 young people went on the rampage on Norrebrogade, a big shopping thoroughfare in a district of Copenhagen with a high concentration of immigrants.

ECONOMIST: Danes on the rampage

Until now, these two giants have argued that big cuts were an inequitable way to deal with a carbon-dioxide concentration in the atmosphere that was not of their making, but because of earlier industrialisation.

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Could the concentration of the industry be tackled directly, by breaking up the Big Four or by encouraging smaller firms to merge?

ECONOMIST: Auditing