Hallgeir Sjåstad

Professor Hallgeir Sjåstad

+47 55 95 97 62
Strategy and Management
Behavioural economics Social psychology Judgement and decision-making


Hallgeir Sjåstad is a Professor of Psychology and Leadership at the Norwegian School of Economics (NHH), at the Department of Strategy and Management. He is affiliated with the Center for Sustainable Business and the research center FAIR.


In his research, Sjåstad studies the psychology of time, decision-making, and social life. In his teaching, he gives courses and lectures in experimental research methods, social psychology, leadership and organizational psychology (SOL1), decision-making and happiness research (SOL21). 


Sjåstad is a clinical psychologist by training (Cand.psychol.), holding an Advanced Master of Science degree from the University of Bergen (2012), and received his Ph.D. degree in psychology and decision science from NHH in 2017. After working two years as Assistant Professor in psychology and behavioral economics at the FAIR Insight Team (SNF), he returned to the strategy department (NHH) as Associate Professor in 2020. In 2022, Sjåstad was promoted to full professor at the age of 36, only 5 years since he defended his PhD.

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Selected publications

Author(s) Title Publisher
Van Bavel, Jay J.; Cichocka, Aleksandra; Capraro, V; Sjåstad, Hallgeir; Nezlek, J. B.; Boggio, P. S. National identity predicts public health support during a global pandemic Nature Communications; 2022
Sjåstad, Hallgeir; Ay, Fehime Ceren; Pavlović, Tomislav; Azevedo, Flavio; De, Koustav; Riaño-Moreno, Julián C.; Maglić, Marina; Gkinopoulos, Theofilos; Donnelly-Kehoe, Patricio Andres Predicting attitudinal and behavioral responses to COVID-19 pandemic using machine learning PNAS Nexus; 2022
Sætrevik, Bjørn; Sjåstad, Hallgeir Mortality salience effects fail to replicate in traditional and novel measures Meta-Psychology; 2022
Dahlen, Michael; Thorbjørnsen, Helge; Sjåstad, Hallgeir; Wågert, Petra von Heideken; Hellström, Charlotta; Kerstis, Birgitta; Lindberg, Daniel; Stier, Jonas; Elven, Maria Changes in Physical Activity Are Associated with Corresponding Changes in Psychological Well-Being: A Pandemic Case Study International Journal of Environmental Research and Public Health (IJERPH) Volume 18 (20); 2021
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