The real problem with Thomas Piketty's grand theory of inequality

Chris Giles is poking holes in the French economist's book — but they're the wrong holes

Piketty
(Image credit: (REUTERS/Charles Platiau))

The Financial Times' Chris Giles' attack on Thomas Piketty's Capital in the 21st Century in which he alleges that the French economist made serious methodological errors that undermine his conclusions about wealth inequality soaring to historically bad levels — has generated a fierce debate, particularly because so many liberals had celebrated Piketty's book to champion progressive economic policies. Piketty, for his part, says he was "ambushed" by Giles, and that the FT's criticism of his data is "dishonest".

What Giles pretty clearly did find is that the underlying data Piketty used for his book is rather muddy, with different studies showing varying levels of wealth inequality. The historical recordkeeping of wealth levels across various countries is rather shoddy. Giles also found that Piketty made a few minor errors and typos. He was absolutely right to bring these to light.

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John Aziz is the economics and business correspondent at TheWeek.com. He is also an associate editor at Pieria.co.uk. Previously his work has appeared on Business Insider, Zero Hedge, and Noahpinion.