Taming overconfident CEOs through stricter financial regulation

A large body of literature finds that managerial overconfidence increases risk-taking by financial institutions. This paper shows that financial regulation can be effective at mitigating this type of risk. Exploiting regulatory changes introduced after the financial crisis as a natural experiment, I find that overconfidence-induced risk-taking decreases in financial institutions subject to stricter regulation. Following the easing of these regulations, overconfidence-induced risk-taking increases again. These findings confirm the effectiveness of financial regulation at correcting overconfident behavior, but also suggest that the impact fades away quickly once removed.