The global boom of millionaires

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Household wealth is hitting record heights, and not just in the U.S. There are more millionaire households on the planet than ever before, particularly in Europe and in China, where growth rates are highest.
The total number of world millionaire households -- those with assets of $1 million or more -- grew by 14 per cent in 2006, to 9.6 million, representing the richest 0.7 per cent of all households and owning $33.2 trillion, or about a third of the world's wealth, according to a recent study by the Boston Consulting Group, a global management consulting firm.
"It's sort of a sexy thing, looking at managing relationships on a household level," says Bruce Holley, a New York-based partner with BCG, of the study.
— yahoo news