Peter Preglej presented his research on narcissism and economic decision-making at TIBER 2026

Our PhD student Peter Preglej took part in the TIBER 2026 Symposium on Psychology and Economics at Tilburg University, where he presented a joint research project with Štěpán Bahník on the relationship between narcissism and economic decision-making.

Peter presented the project Grandiose vs. Vulnerable Narcissism: Impact on Risk-Taking and Decision-Making. The study examines how two distinct forms of narcissism, grandiose and vulnerable, relate to strategic decision-making. While grandiose narcissism is associated with social dominance and an inflated self-view, vulnerable narcissism is characterized more by defensiveness and social avoidance.

The research uses an incentivized laboratory experiment with three behavioural tasks. These focus on competitiveness and overconfidence, trust and reciprocity, and strategic coordination. The aim of the project is to better understand how different forms of narcissism shape economic behaviour and decision-making.

The TIBER 2026 Symposium on Psychology and Economics took place on 21 August 2026 at Tilburg University and featured research in behavioural economics, psychology, and decision-making.