A very smart political scientist friend used to say, “The fundamental question in human affairs is, who shall rule?” We think the fundamental question is, “Who should rule?”

Leadership is one of the most important topics in the human sciences, and historically one of the more poorly understood. With good leadership, people and organizations (governments, corporations, universities, hospitals, armies) thrive and prosper. Bad leaders perpetrate terrible misery on those subject to their domain.

What we Know About Leadership is Hogan’s perspective on what makes a good leader, what makes a bad leader, and how companies should measure leader performance.