Tag: Kenneth Rogoff

What the Piketty Errors Mean


PikettyRemember the Reinhart/Rogoff spreadsheet error? In the event that you do not, here is a summary. Those who follow debates between economists will recall that the spreadsheet error led to all kinds of excoriations of Carmen Reinhart and Kenneth Rogoff on the part of liberal economists, who claimed that they were responsible for austerity policies that killed off economic growth. Even Stephen Colbert got in on the act. Their spreadsheet error was considered to be the worst tragedy that befell the planet since that one time when Oedipus and Jocasta had a super-awesome first date.

Of course, the excoriations were vastly overstated, but that didn’t stop intellectual opponents of Reinhart and Rogoff from engaging in hyperbole on a grand scale. Now that Thomas Piketty has been caught making his own significant errors, comparisons have naturally been made between Piketty on the one hand, and Reinhart and Rogoff on the other.

These comparisons fail. Reinhart and Rogoff may have made a spreadsheet error, but there is a very plausible argument that the error did not affect their conclusions, and there was no serious accusation on anyone’s part — not even the most severe critics — that Reinhart and Rogoff engaged in intellectual or scholarly fraud.