Hallgeir Sjåstad
@hallgeirsjastad.bsky.social
Professor of Psychology & Leadership at Norwegian School of Economics (NHH). I study decision-making, social life, and how people think about the future.
Homepage: https://sites.google.com/view/hallgeir-sjastad/home
Homepage: https://sites.google.com/view/hallgeir-sjastad/home
For a quick introduction to this research, see the post below.
Full working paper/pre-print:
osf.io/preprints/ps...
Full working paper/pre-print:
osf.io/preprints/ps...
June 26, 2025 at 1:39 PM
For a quick introduction to this research, see the post below.
Full working paper/pre-print:
osf.io/preprints/ps...
Full working paper/pre-print:
osf.io/preprints/ps...
Can 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.
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.
June 26, 2025 at 1:33 PM
Can 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.
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.
Pre-print:
osf.io/preprints/ps...
Abstract and key figure summarizing the main effect across our three experiments: See below.
As always: Feedback is most welcome.
osf.io/preprints/ps...
Abstract and key figure summarizing the main effect across our three experiments: See below.
As always: Feedback is most welcome.
June 25, 2025 at 1:57 PM
Pre-print:
osf.io/preprints/ps...
Abstract and key figure summarizing the main effect across our three experiments: See below.
As always: Feedback is most welcome.
osf.io/preprints/ps...
Abstract and key figure summarizing the main effect across our three experiments: See below.
As always: Feedback is most welcome.
We 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.
Documenting a robust best-case planning tendency, see below for details! Joint work with my last-year PhD student Simen Bø and Vincent Somville.
June 25, 2025 at 1:55 PM
We 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.
Documenting a robust best-case planning tendency, see below for details! Joint work with my last-year PhD student Simen Bø and Vincent Somville.
Abstract: See below.
Working paper/pre-print:
papers.ssrn.com/sol3/papers....
As always:
Feedback is most welcome!
Working paper/pre-print:
papers.ssrn.com/sol3/papers....
As always:
Feedback is most welcome!
June 12, 2025 at 5:39 PM
Abstract: See below.
Working paper/pre-print:
papers.ssrn.com/sol3/papers....
As always:
Feedback is most welcome!
Working paper/pre-print:
papers.ssrn.com/sol3/papers....
As always:
Feedback is most welcome!
Even the weather played along! Spring in Bergen 🌞
May 12, 2025 at 5:57 PM
Even the weather played along! Spring in Bergen 🌞
For those interested in an overview:
1: Social media and morality: An updated review (Van Bavel, Robertson, del Rosario, Rasmussen & Rathje 2024).
www.annualreviews.org/content/jour...
2: The MAD Model of Moral Contagion (Brady, Crockett & Van Bavel, 2020).
pubmed.ncbi.nlm.nih.gov/32511060/
1: Social media and morality: An updated review (Van Bavel, Robertson, del Rosario, Rasmussen & Rathje 2024).
www.annualreviews.org/content/jour...
2: The MAD Model of Moral Contagion (Brady, Crockett & Van Bavel, 2020).
pubmed.ncbi.nlm.nih.gov/32511060/
May 12, 2025 at 5:52 PM
For those interested in an overview:
1: Social media and morality: An updated review (Van Bavel, Robertson, del Rosario, Rasmussen & Rathje 2024).
www.annualreviews.org/content/jour...
2: The MAD Model of Moral Contagion (Brady, Crockett & Van Bavel, 2020).
pubmed.ncbi.nlm.nih.gov/32511060/
1: Social media and morality: An updated review (Van Bavel, Robertson, del Rosario, Rasmussen & Rathje 2024).
www.annualreviews.org/content/jour...
2: The MAD Model of Moral Contagion (Brady, Crockett & Van Bavel, 2020).
pubmed.ncbi.nlm.nih.gov/32511060/
Today 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.
Packed with interesting research questions, integrative ideas, the MAD model of moral contagion, and large-scale data from observational & experimental studies.
May 12, 2025 at 5:49 PM
Today 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.
Packed with interesting research questions, integrative ideas, the MAD model of moral contagion, and large-scale data from observational & experimental studies.
For those interested:
Some reflections below on the background, idea, and main findings.
Some reflections below on the background, idea, and main findings.
April 11, 2025 at 4:06 PM
For those interested:
Some reflections below on the background, idea, and main findings.
Some reflections below on the background, idea, and main findings.
Happy 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...
"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...
April 11, 2025 at 4:02 PM
Happy 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...
"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...
For those interested: A bit more about the background, general idea, and main findings below.
April 7, 2025 at 10:16 AM
For those interested: A bit more about the background, general idea, and main findings below.
Our 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...
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...
April 7, 2025 at 10:13 AM
Our 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...
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...
I 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).
Attending Motorpsycho live in Bergen! One of my all-time favorite rock bands (experimental/prog/psychedelic).
March 28, 2025 at 5:54 PM
I 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).
Attending Motorpsycho live in Bergen! One of my all-time favorite rock bands (experimental/prog/psychedelic).
We are hiring in Marketing!
Two positions available: One tenured and one tenure-track. See job ad links in the reply below.
Two positions available: One tenured and one tenure-track. See job ad links in the reply below.
March 23, 2025 at 2:43 PM
We are hiring in Marketing!
Two positions available: One tenured and one tenure-track. See job ad links in the reply below.
Two positions available: One tenured and one tenure-track. See job ad links in the reply below.
In 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.
Think about the research question for a couple of seconds and make your prediction, before learning the results.
March 18, 2025 at 8:47 AM
In 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.
Think about the research question for a couple of seconds and make your prediction, before learning the results.
A 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.
"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.
March 5, 2025 at 2:59 PM
A 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.
"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.
I 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.
(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.
February 16, 2025 at 4:59 PM
I 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.
(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.
In 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.
The world doesn't *have to be* a zero-sum game, although it is fully possible to make it so.
February 3, 2025 at 2:59 PM
In 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.
The world doesn't *have to be* a zero-sum game, although it is fully possible to make it so.
1/3 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.
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.
January 31, 2025 at 11:35 AM
1/3 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.
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.
Thank you for forwarding my question, @rafmbatista.bsky.social, and for providing these pointed responses with references as original author, @daviddunning6.bsky.social.
Very helpful, and much appreciated! I will take a closer look.
Perhaps also of interest:
drbenvincent.medium.com/the-dunning-...
Very helpful, and much appreciated! I will take a closer look.
Perhaps also of interest:
drbenvincent.medium.com/the-dunning-...
January 29, 2025 at 6:06 PM
Thank you for forwarding my question, @rafmbatista.bsky.social, and for providing these pointed responses with references as original author, @daviddunning6.bsky.social.
Very helpful, and much appreciated! I will take a closer look.
Perhaps also of interest:
drbenvincent.medium.com/the-dunning-...
Very helpful, and much appreciated! I will take a closer look.
Perhaps also of interest:
drbenvincent.medium.com/the-dunning-...
New 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...
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...
January 23, 2025 at 12:13 PM
New 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...
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...
A nice illustration of territorial thinking, in two different kinds of animals.
January 5, 2025 at 6:30 PM
A nice illustration of territorial thinking, in two different kinds of animals.
Quite rare, actually: Winter in Bergen.
January 4, 2025 at 6:43 PM
Quite rare, actually: Winter in Bergen.
I 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.
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.
December 25, 2024 at 7:12 PM
I 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.
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.
Bergen last night. Clear water, foggy sky. A feeling of December in the streets.
December 12, 2024 at 5:22 PM
Bergen last night. Clear water, foggy sky. A feeling of December in the streets.