Abstract: The author, a professor at Harvard Law School, argues that concerns about the perils of short-termism—and support for measures that would insulate corporate leaders from the outside pressures that allegedly make them myopic—are long on alarming rhetoric and short on empirical evidence or economic logic. Furthermore, he writes, the threat of hedge fund activism should be expected to discourage managerial slack and underperformance, thus playing an important disciplinary role and incentivizing leaders to enhance shareholder value.