In chaotic times, an executive’s instinct may be to strive for greater efficiency by tightening control. But the truth is that relinquishing authority and giving employees considerable autonomy can boost innovation and success at knowledge firms, even during crises. Our research provides hard evidence that leaders who give in to the urge to clamp down can end up doing their companies a serious disservice.

A version of this article appeared in the December 2009 issue of Harvard Business Review.