Statistics and lies

Felix Salmon—who is an excellent writer whom you should read regularly—points out one of the problems with the way statistics about wealth are packaged for public consumption.

But there’s one unlikely country which has a whopping 7.5% of the poorest of the poor — second only to India. That country? The United States.

How is it that the US can have 7.5% of the bottom decile, when it has only 0.21% of the second decile and 0.16% of the third? The answer: we’re talking about net worth, here: assets minus debts. And if you add up the net worth of the world’s bottom decile, it comes to minus a trillion dollars. The poorest people in the world, using the Credit Suisse methodology, aren’t in India or Pakistan or Bangladesh: they’re people like Jérôme Kerviel, who has a negative net worth of something in the region of $6 billion.

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