Sebastien Brion

Associate Professor of Managing People in Organizations at IESE Business School


  • IESE Business School




IESE Business School

Areas of Interest

  • Power and Influence
  • Alliance and Coalition Formation
  • Groups and Teams
  • Accuracy and Bias in Interpersonal Perception

Sebastien Brion is an Associate Professor of Managing People in Organizations at IESE Business School. He holds a Ph.D. in Organizational Behavior from the Haas School of Business, University of California, Berkeley. In his research, Professor Brion explores the psychological effects of power, focusing on the attainment, maintenance, and loss of power in group and organizational settings. His dissertation explored how biases in the way that powerful individuals perceive their alliances with others contribute to the loss of power. In addition, he has explored the impact of overconfidence on leadership, investigating the critical distinction between leadership emergence and leadership effectiveness. Professor Brion''s research has been highlighted in numerous publications, including The Economist, Le Monde, DieWelt, and Valor Económico.

At IESE, Professor Brion teaches core classes on Leadership and Human Resources Management, and electives on Power and Influence, at the MBA and Executive level. Professor Brion has taught in executive programs for firms such as L''Oreal, Santander, Nissan, NLNG (Lagos, Nigeria), and Kazakhstan Temir Zholy (National Railways of Kazakhstan). In addition, he has held a Visiting Professor position at the Tuck School of Business at Dartmouth College and has taught in executive program s for the Haas School of Business and MDE (Abidjan, Côte d?Ivoire).

As part of his professional activities Professor Brion has conducted research and consulting projects in the human resources and social media industries.

Courses Taught

Read about executive education

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