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A plutocracy (Greek: πλοῦτος, ploutos, 'wealth' + κράτος, kratos, 'power') or plutarchy is a society that is ruled or controlled by people of great wealth or income. The first known use of the term in English dates from 1631. Unlike systems such as democracy, liberalism, socialism, communism or anarchism, plutocracy is not rooted in an established political philosophy.

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