Itzhak Ben-David, John Graham, Campbell Harvey, 20 August 2016

Experiments have revealed that humans often suffer from overconfidence in the accuracy of their information, or ‘miscalibration’. This column uses data from surveys of CFOs to assess their ability to make financial predictions. The results suggest not only that CFOs are miscalibrated, but also that firms with miscalibrated executives appear to be more aggressive in their corporate policies. In other words, the overconfidence of the executive shows up in the company’s policies.

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