General intelligence is an essential characteristic for good leadership. Research by John Antonakis and colleagues on the relationship between IQ and perceptions of effective leadership reveals that a leader’s optimal IQ level depends on the average intelligence of the group being led; too high or too low leader IQ may spell disaster for the leaders.
You might hope that senior leaders, the people who run countries, corporations or other organizations, are chosen on the basis of a performance track record that can be directly linked to their decisions and actions. But, as research by John Antonakis and Philippe Jacquart reveals, this is far from the truth.
For centuries, philosophers and scientists have been interested in how people relate to power. Now a new study has revealed that the testosterone levels of leaders can influence their behavior and induce them to make decisions to solely increasing their personal payouts.