Understanding how a task group’s demographic composition influences its effectiveness requires considering situational demands. We explore this insight in a high-pressure situation, Himalayan mountain climbing. We hypothesize that the distribution of members’ nationality...

Narcissism is characterized by traits such as dominance, self-confidence, a sense ofentitlement, grandiosity, and low empathy. There is growing evidence that individuals with these characteristics often emerge as leaders, and that narcissistic CEOs may make more impulsive and risky decisions. We...