Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 13/10/2025Do people lie to benefit the in-group and harm the out-group? In a new paper, we found that people lied 9% more to help in-group members than out-group members! This is evidence of coalitional dishonesty Democrats & Republicans both lied anonymously to double in-group members earnings (N=5,230) 12213
Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 01/09/2025Our new research finds that people are willing to cheat if it benefits their group — even when they gain nothing themselves. "the risk of dishonesty in organizations is not limited to selfish acts...employees might bend rules to benefit their team or in-group members." www.nhh.no/en/nhh-bulle...nhh.noWe lie for those who are like usThree experiments with more than 5,000 participants show that people are willing to cheat if it benefits their group — even when they gain nothing themselves. 28031
Reposted by Hallgeir SjåstadHallgeir Sjåstad @hallgeirsjastad.bsky.social · 26/06/2025Can the psychology of time help us understand climate change? In collaboration with my excellent PhD student Simen Bø, we have a new pre-print exploring the temporal psychology of climate hesitancy, and whether it is possible to increase actual climate support by varying the *timing* of incentives. 141
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 26/06/2025Can the psychology of time help us understand climate change? In collaboration with my excellent PhD student Simen Bø, we have a new pre-print exploring the temporal psychology of climate hesitancy, and whether it is possible to increase actual climate support by varying the *timing* of incentives. 141
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 25/06/2025We have a new working paper, studying planning choices in the United States and Tanzania: "Just perfect days ahead?" Documenting a robust best-case planning tendency, see below for details! Joint work with my last-year PhD student Simen Bø and Vincent Somville. 140
Reposted by Hallgeir SjåstadPaolo Crosetto @paolocrosetto.bsky.social · 15/06/2025A *null* result I'm very proud of! Led by Rustam Romaniuc, 35 coauthors from all over France tested nudge interventions to boost voter turnout. None worked, and we are possibly not surprised -- but a well-powered null result *is* a result! Paper: kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F... 530278
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 12/06/2025The Washington Post has written a new article about the modern underground waste system in Bergen (Norway), featuring our research on the effect of incentives vs. norm-nudges on actual recycling behavior. www.washingtonpost.com/climate-solu...washingtonpost.comTrash sucks: A Norwegian city uses vacuum tubes to whisk waste awayBergen, Norway, has been building one of the world’s most advanced trash systems in its 955-year-old city center. 131
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 15/05/2025To me, a thing that never gets old: The feeling you get when launching a top-priority large-scale data collection, designed to test ideas and hypotheses you have spent months and even years developing. 20% anxiety, 80% curiosity! 110
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 12/05/2025Today we had the great pleasure of welcoming back @jayvanbavel.bsky.social to NHH, who gave a seminar on social media and human morality! Packed with interesting research questions, integrative ideas, the MAD model of moral contagion, and large-scale data from observational & experimental studies. 161
Reposted by Hallgeir Sjåstadkoenfucius @koenfucius.bsky.social · 28/04/2025Incorrigible optimists, that’s what we are. Research by @hallgeirsjastad.bsky.social et al finds that—even when we reflect on our past wellbeing levels and notice they’ve been steady—we believe in a brighter future for ourselves and our friends (but not for our enemies): buff.ly/hSZBrxL 032
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 11/04/2025Happy to share that we have a new paper on the causal effect of promises, just published in JEBO. "Making a promise increases the moral cost of lying: Evidence from Norway and the United States." Joint work w/ Mathias Eström, Kjetil Bjorvatn & Pablo Soto Mota. www.sciencedirect.com/science/arti... 2152
Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 07/04/2025By focusing on substantive strategies and actionable guidance, rather than the flashiest new phrase, climate communicators may see greater success mobilizing the public. It’s not about what we call it, but likely how we encourage people to tackle it. jayvanbavellab.substack.com/p/climate-te...jayvanbavellab.substack.comClimate Terminology Does Not MatterOur new paper finds that swapping out one climate term for another does not meaningfully change people’s stated commitment to fight climate change 0167
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 07/04/2025Our paper suggesting that people are "selective optimists" when predicting the future has now been published (EJSP). Self-serving optimism in well-being prediction: People believe in a bright future for themselves and their friends, but not for their enemies. onlinelibrary.wiley.com/doi/abs/10.1... 1238
Reposted by Hallgeir SjåstadTimothy Snyder @timothysnyder.bsky.social · 30/03/2025Here is my best guidance for action, rendered beautifully by the great John Lithgow. I first published these lessons more than eight years ago, in late 2016. They open the twenty chapters of "On Tyranny: Twenty Lessons from the Twentieth Century." snyder.substack.com/p/twenty-les...snyder.substack.comTwenty Lessons, read by John LithgowKey selections from On Tyranny, for viewing and sharing 26691504384
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 28/03/2025I mostly post about research here, but since researchers also (can?) have a life outside work: Here is a glimpse from last night. Attending Motorpsycho live in Bergen! One of my all-time favorite rock bands (experimental/prog/psychedelic). 020
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 23/03/2025We are hiring in Marketing! Two positions available: One tenured and one tenure-track. See job ad links in the reply below. 230
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 18/03/2025In my experience, this approach generally works well in teaching too: Think about the research question for a couple of seconds and make your prediction, before learning the results. 031
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 14/03/2025I will never understand how you can write a full paper about how you can best measure some construct with a certain scale, *without* including a complete list of specific items and instructions easily available in the paper. 130
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 05/03/2025A long-time favorite paper was accepted for publication today in EJSP: "Self-serving optimism in well-being prediction: People believe in a bright future for themselves and their friends, but not for their enemies." Some good news in difficult times. I will share a longer post when published. 110
Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 04/03/2025Defunding the world’s leading scientific community is akin to a performing a prefrontal lobotomy on the nation—you are effectively severing the connections between the most innovative ideas and its citizens. Cutting support for science harms everyone! www.powerofusnewsletter.com/p/a-national...powerofusnewsletter.comA National Prefrontal Lobotomy: The Costs of Cutting the Social SciencesIssue 158: The long-term impacts of funding cuts threaten "social science for a safer world" 5357114
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 04/03/2025"Authoritarian leaders who restricted the press were more popular than those who permitted greater freedom. Where Internet access was narrower, and where Internet content was censored, support was also higher." "But ratings fall when citizens recognize censorship." www.cambridge.org/core/journal...cambridge.orgThe Popularity of Authoritarian Leaders | World Politics | Cambridge CoreThe Popularity of Authoritarian Leaders - Volume 72 Issue 4 120
Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 20/02/2025American science is under attack. This includes everything from cuts to censorship. This will likely have damaging consequences for fields ranging from medical science to agricultral from national defense to economics. See this letter from the Director of the NIH: www.nytimes.com/2025/02/14/o... 58729
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 19/02/2025The last 4 weeks has already felt like 4 long years, and the 4 years ahead feels like an eternity -- currently heading in a very dangerous direction. Even for those of us who often lean in an optimistic direction, that is the assessment. The US, and the World, is now changing fast. Backwards. 030
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 16/02/2025I thought reviewers directly recommending "accept as is" was a myth, but now I have experienced it myself -- for the first time in my life. (We had to do a full revision and collect more data to address R2, but still!) The job is now done and the paper accepted. Looking forward to share it soon. 2131
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 03/02/2025In a world that suddenly has become more unstable and uncertain, it can be tempting to give in to hopelessness and cynicism. But perhaps there is still something to be learned, from the psychology of hope? The world doesn't *have to be* a zero-sum game, although it is fully possible to make it so. 110
Reposted by Hallgeir SjåstadOleg Urminsky @olegurminsky.bsky.social · 02/02/2025It seems like every society needs to painfully re-learn, every 50-100 years or so, that good things are fragile and easily taken for granted and a fun dip into smashing stuff to shake up the system can turn out to be truly terrible, unlocking all kinds of barely hidden demons. 1172
Reposted by Hallgeir SjåstadThomas Talhelm @thomastalhelm.bsky.social · 31/01/2025New data available! Relational mobility across hundreds of prefectures in China using nationally representative survey data. psycnet.apa.org/record/2025-... 111
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 31/01/20251/3 We are hiring in AI! 🔥 Tenured position as Professor in Information Technology and AI, in Bergen at NHH - Norwegian School of Economics, Dep. of Strategy and Management. A rare combination: Job safety; academic freedom; high living standards; and a supportive & ambitious research environment. 120
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 29/01/2025Really cool work on sustainable consumer behavior from behavioral economics, by Thomas de Haan & Magnus Knutsen, focusing on how we can incentivize *firms* to reduce negative externalities. Forthcoming in Management Science. Check it out 👇 040
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 28/01/2025Help needed: After the recent criticism that the Dunning-Kruger effect is "mostly a statistical artifact", I have a vague memory of a well-informed response, arguing (and showing with data) how the effect is still meaningful even when taking method limitations into account. Which paper/blog? 020
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 26/01/2025Interesting thread on a new paper, suggesting that low-level perception (like context-dependent judgment of line length) does not seem to be culturally specific for WEIRD societies. "Does culture create the Müller-Lyer illusion?" "We think: "Probably not". Here's a visual summary of our argument." 030
Reposted by Hallgeir SjåstadDan Quintana @dsquintana.bsky.social · 23/01/2025Re-boosting two recently announced permanent positions in our department at the University of Oslo ⬇️ Associate Professor - Artificial Intelligence in Psychology www.jobbnorge.no/en/available... Associate Professor - Developmental Psychology www.jobbnorge.no/en/available... 13736
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 23/01/2025New paper reports an interesting lab experiment on the role of honesty in leadership: Dishonest leaders may be less *effective* in the leader role than honest leaders, because honest followers respond to dishonest leaders by being less compliant & cooperative. www.sciencedirect.com/science/arti... 041
Reposted by Hallgeir SjåstadExperimental Philosophy @xphilosopher.bsky.social · 09/01/2025Our new paper on why people love sad art The key question: You probably wouldn’t enjoy it if someone started telling you about how she is addicted to drugs and her life is failing apart. So why do you love it when she creates a work of art about that very same thing? osf.io/preprints/ps... 610123
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 21/01/2025Knowledge and climate behavior: I recently read the abstract of a paper from political science, based on a large experiment finding no effect of an information-based knowledge intervention on climate-related behavior change (although it improved climate knowledge). Do you happen to know the ref? 010
Reposted by Hallgeir SjåstadHallgeir Sjåstad @hallgeirsjastad.bsky.social · 19/01/2025Ny kronikk om norsk forskningspolitikk i 50-årsperspektiv: 2025 bør markere starten på en storsatsing på våre beste fagmiljøer - ikke nedbygging av kunnskapssektoren, og et selvsentrert norskkrav som gjør det vanskeligere å tiltrekke seg internasjonale forskertalenter. www.khrono.no/det-er-pa-ti...khrono.noDet er på tide å heve ambisjonsnivået for Norge som kunnskapsnasjonNorge har tjent seg rik på oljen, men bruker minst i Norden på forskning og utvikling. 2025 bør derfor markere starten på en storsatsing på våre beste fagmiljøer. Hadde ikke det vært noe? 011
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 19/01/2025Ny kronikk om norsk forskningspolitikk i 50-årsperspektiv: 2025 bør markere starten på en storsatsing på våre beste fagmiljøer - ikke nedbygging av kunnskapssektoren, og et selvsentrert norskkrav som gjør det vanskeligere å tiltrekke seg internasjonale forskertalenter. www.khrono.no/det-er-pa-ti...khrono.noDet er på tide å heve ambisjonsnivået for Norge som kunnskapsnasjonNorge har tjent seg rik på oljen, men bruker minst i Norden på forskning og utvikling. 2025 bør derfor markere starten på en storsatsing på våre beste fagmiljøer. Hadde ikke det vært noe? 011
Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 14/01/2025To bridge divides, most people think facts are the key. But that’s wrong. Personal experiences are more powerful. We interview @kurtjgray.bsky.social about his new book "Outraged: Why We Fight About Morality and Politics and How to Find Common Ground": www.powerofusnewsletter.com/p/outraged-w... 02612
Reposted by Hallgeir SjåstadKaitlyn M. Werner, PhD @kaitlynmwerner.bsky.social · 14/01/2025Thrilled to finally have this paper officially out! Across eight samples (n=2k+), we find that having a larger strategy repertoire can benefit goal attainment. We also discuss challenges with measuring repertoire and flexibility more broadly. w/ Raymond Wu, J. Gross, @malfrie.bsky.social #AffectSci 13715
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 05/01/2025A nice illustration of territorial thinking, in two different kinds of animals. 040
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 04/01/2025Quite rare, actually: Winter in Bergen. 1131
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 25/12/2024I wish all my friends and colleagues a peaceful winter holiday, in this final week of the year. Merry Christmas to those who celebrate! 🎄 Take care of yourself and the people in your life, and best of luck with everything that awaits on the other side, in the new year of 2025. 030
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 16/12/2024In my psychology intro course, I have talked about the low predictive power of unstructured job interviews. Even made fun of them. I recently interviewed students for TA positions. One of them noted: "How interesting to be invited for an *interview* by *you*, who do not believe in interviews." :) 3233
Reposted by Hallgeir SjåstadJay Van Bavel, PhD @jayvanbavel.bsky.social · 14/12/2024Dear academics We could dramatically reduce our administrative workload if we all just agreed not to ask for reference letters until we made our list of finalists. This is massive collective action problem has already been solved by… *checks notes* …every other industry on earth. 21623124
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 15/12/2024Interesting thread, suggesting there is both a correlational and causal link between economic inequality and social unrest 👇 020
Reposted by Hallgeir SjåstadPeter Hull @instrumenthull.bsky.social · 15/12/2024We've significantly updated our paper on modeling + measuring systemic discrimination! Check it out: www.dropbox.com/scl/fi/ab5yx... (cc @aleximas.bsky.social + @aislinnbohren.bsky.social!) A short 🧵 on what's new... 915744
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 12/12/2024Bergen last night. Clear water, foggy sky. A feeling of December in the streets. 020
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 08/12/2024Pronin & Kugler (2010) found: People evaluated their own decisions & life events as less predictable than similar decisions & life events of others, presumably reflecting higher self-centered free will attribution. A replication team paper I played a small part in just published: Mostly successful. 1237
Hallgeir Sjåstad @hallgeirsjastad.bsky.social · 30/11/2024Great thread (scroll upwards). Expanding the scope from the recent prospect theory paper to a broader set of questions regarding contextual effects in behavioral economics and decision-making research (JDM). 020
Reposted by Hallgeir SjåstadWilliam J. Brady @williambrady.bsky.social · 28/11/2024New paper out in @ScienceMagazine! In 8 studies (multiple platforms, methods, time periods) we find: misinformation evokes more outrage than trustworthy news, when it does it's shared more + ppl are less likely to read before sharing. w/ @killianmcl1 @Klonick @mollycrockett 🧵👇 12535201149