Publications: Journal articles
2025
Døskeland, T., Martuza, J., Pedersen, L.J.T., Santos, F., Sjåstad, H., & Thorbjørnsen, H. (2025). The role of social norms in retirement savings: Evidence from two large-scale field experiments. Journal of Business Research.
Ekström, Bjorvatn, K., M., & Sjåstad, H. (2025). Making a promise increases the moral cost of lying: Evidence from Norway and the United States. Journal of Economic Behavior & Organization.
Sjåstad, H., Thorbjørnsen, H., Skard, S., & Norman, E. (2025). Self-serving optimism in well-being prediction: People believe in a bright future for themselves and their friends, but not for their enemies. European Journal of Social Psychology.
Sjåstad, H. & Van Bavel, J. (2025). The best-case heuristic: Relative optimism in relationships, politics, and a global health pandemic. Personality and Social Psychology Bulletin.
2024
Bø, S. & Sjåstad, H. (2024). Revisiting the moral forecasting error: A pre-registered replication of "Are we more moral than we think?" Journal of Experimental Social Psychology.
Chandrashekar, S. P., Permut, S., Sjåstad, H., Kueh, Y. J., Zhong, E. S., Wan, K. H., ... & Feldman, G. (2024). Do People Believe They Are Less Predictable Than Others? Three Replications of Pronin and Kugler’s (2010) Experiment 1. International Review of Social Psychology.
Doell, K. C., Todorova, B., Vlasceanu, M., Bak Coleman, J. B., Pronizius, E., Schumann, P., ... Sjåstad, H., ... & Lutz, A. E. (2024). The International Climate Psychology Collaboration: Climate change-related data collected from 63 countries. Scientific Data.
Vlasceanu, M., Doell, K. C., Bak-Coleman, J. B., Todorova, B., Berkebile-Weinberg, M. M., Grayson, S. J., ... Sjåstad, H., ... & Lutz, A. E. (2024). Addressing climate change with behavioral science: A global intervention tournament in 63 countries. Science Advances.
2023
Azevedo, F., Pavlović, T., Rêgo, G. G., Ay, F. C., Gjoneska, B., Etienne, T. W., ... Sjåstad, H., … & Huang, G. (2023). Social and moral psychology of COVID-19 across 69 countries. Scientific Data.
Boggio, P., Nezlek, J., Alfano, M., Azevedo, M., Capraro, V., Cichocka, M., Parnamets, P., Rego, G., Sampaio, W., Sjåstad, H., & Van Bavel, J. (2023). A time for moral actions: Moral identity, Morality-as-Cooperation, and Moral Circles predict support of collective action to fight the Covid-19 pandemic in an international sample. Group Processes & Intergroup Relations.
Sjåstad, H. & Baumeister, R. F. (2023). Fast optimism, slow realism? Causal evidence for a two-step model of future thinking. Cognition.
Sjåstad, H. & Bø, S. (2023). Mental simulation of future possibilities: Preparing for action, or protecting the self? Possibility Studies and Society.
2022
Pavlović, T., Azevedo, F., De, K., Riaño-Moreno, J. C., Maglić, M., Gkinopoulos, T., ... & Keudel, O. (2022). Predicting attitudinal and behavioral responses to COVID-19 pandemic using machine learning. PNAS Nexus.
Sætrevik, B., & Sjåstad, H. (2022). Failed pre-registered replication of mortality salience effects in traditional and novel measures. Meta-Psychology.
Van Bavel, J. J., Cichocka, A., Capraro, V., Sjåstad, H., Nezlek, J. B., Alfano, M., … Hudecek, M. F. C. (2022). National identity predicts public health support during a global pandemic. Nature Communications.
Baumeister, R. F., Maranges, H. M., & Sjåstad, H. (2022). Matrix of Maybe. The Palgrave Encyclopedia of Possibility.
2021
Everett, J.A.C., Colombatto, C., Awad, E., Boggio, P., Bos, B., Brady, W.J., Chawla, M., Chituc, V., Chung, D., Drupp, M.A., Goel, S., Grosskopf, B., Hjorth, F., Ji, A., Kealoha, C., Kim, J.S., Lin, Y., Ma, Y., Maréchal, M.A., Mancinelli, F., Mathys, C., Olsen, A.L., Pearce, G., Prosser, A.M.B., Reggev, N., Sabin, N., Senn, J., Sinnott-Armstrong, W., Shin, Y.S., Sjåstad, H., Strick, M., Sul, S., Tummers, L., Turner, M., Yu, H., Zoh, Y., & Crockett, M.J. (2021). Moral dilemmas and trust in leaders during a global health crisis. Registered Report: Nature Human Behaviour.
Dahlén, M., Thorbjørnsen, H., Sjåstad, H., von Heideken Wågert P., Hellström C., Kerstis B., Lindberg D., Stier J., & Elvén M. (2021). 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.
Nødtvedt, K. B., Sjåstad, H., Skard, S., Thorbjørnsen, H., & Van Bavel, J. (2021). Racial bias in the sharing economy and the role of trust and self-congruence. Journal of Experimental Psychology: Applied.
Bø, S., Sjåstad, H., & Norman, E. (2021). Working for the best or bracing for the worst? Approach and avoidance motivation in planning. Collabra: Psychology.
Skard, S., Knudsen, E. S, Sjåstad, H., & Thorbjørnsen, H. (2021). How virtual reality influences travel intentions: The role of mental imagery and happiness forecasting. Tourism Management.
2020
Vonasch, A. & Sjåstad, H. (2020). Future-orientation (as trait and state) promotes reputation-protective choice in moral dilemmas. Social Psychological and Personality Science.
Sjåstad, H., Baumeister, R. F., & Ent, M.R. (2020). Greener grass or sour grapes? How people value future goals after initial failure. Journal of Experimental Social Psychology.
Ent, M. R., Baumeister, R. F., Sjåstad, H., & Von Hippel, W. (2020). Helping behavior is non-zero-sum: Helper and recipient autobiographical accounts of help. Evolution and Human Behavior.
Reynolds, T., Howard, C., Sjåstad, H., Okimoto, T., Baumeister, R., Aquino, K., & Kim JongHan (2020). Man up and take it: Gender bias in moral typecasting. Organizational Behavior and Human Decision Processes.
Sjåstad, H., Zhang, M., Masvie, A., & Baumeister, R.F. (2020). Social exclusion reduces happiness by creating expectations of future rejection. Self and Identity.
2019
Sjåstad, H. (2019). Short-sighted greed? Focusing on the future promotes reputation-based generosity. Judgment and Decision Making.
Sjåstad, H. (2019). Algorithm aversion: An old problem with new implications. Magma - Norwegian Journal for Economics and Management.
Sjåstad, H. & Baumeister, R. F. (2019). Moral self-judgment is stronger for future than past actions. Motivation and Emotion.
2018
Baumeister, R. F., Maranges, H. M., & Sjåstad, H. (2018). Consciousness of the future as a matrix of maybe: Pragmatic prospection and the simulation of alternative possibilities. Psychology of Consciousness: Theory, Research, and Practice.
Sjåstad, H. & Baumeister, R. F. (2018). The Future and the Will: Planning requires self-control, and ego depletion leads to planning aversion. Journal of Experimental Social Psychology.
Sjåstad, H. & Thorbjørnsen, H. (2018). Can choice architecture contribute to long-lasting behavior change? Magma - Norwegian Journal for Economics and Management.
Working papers / pre-prints: Research under review
Bø, S. & Sjåstad, H. (2025). It's about time: Increasing climate support by changing the timing of climate incentives, not the incentives itself.
Bø, S. & Sjåstad, H. (2024). Just perfect days ahead? People plan more for best-case than worst-case scenarios in the United States and Tanzania.
Ekström, M., Sjåstad, H., & Bjorvatn, K. (2024). Creating pro-environmental behavior change: Economic incentives or norm-nudges?
Martuza, J., Sjåstad, H., Thorbjørnsen, H., & Van Bavel, J. J. (2024). Evidence for intergroup bias in coalitional but not selfish dishonesty.
Martuza, J., Sjåstad, H., & Thorbjørnsen, H. (2023). Business-size bias in consumer dishonesty: People are more dishonest against big than small organizations.
Sjåstad, H. & Ekström, M. (2023). Ulyssean self-control: Pre-commitment is effective, but choosing it freely requires good self-control.
The PDF for all papers listed above should be openly available in Google Scholar, and will be shared readily upon request if not: hallgeir.sjastad@nhh.no.