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by ootachi 5699 days ago
The article defines the super-rich as the top 1%. 300M * 1% = 3,000,000. The Forbes 400 is 400 out of the 3,000,000 super-rich, hardly a representative sample.

Instead I'd prefer to turn to studies of social class, such as Thompson & Hickey 2005 [1]. This study defines the upper-class as "largely constituted by the heirs to multi-generational fortunes".

[1]: http://en.wikipedia.org/wiki/Social_class#Thompson_.26_Hicke...