Thomas Piketty has just published an interesting follow-up to his epic Capital in the 21st Century (a book important enough to already have its own wikipedia page). Perhaps the most surprising claim he makes is that commentators have put too much emphasis on the role of “r > g” in his analysis of the dynamics of inequality:
… the way in which I perceive the relationship between r > g and wealth inequality is often not well-captured in the discussion that has surrounded my book…
I do not view r > g as the only or even the primary tool for considering changes in income and wealth in the 20th century, or for forecasting the path of income and wealth inequality in the 21st century.
For an example of that overemphasis, see this delightful Colbert Report t-shirt:
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