Julien Lie-Panis

Thanks Arthur Le Pargneux (arthurlepargneux.wixsite.com/arthurleparg...) for your talk "Contractualist moral cognition: From fair divisions to the emergence of rules via implicit agreements". A novel take on morality backed by clever experiments + elegant models 👍

📃 psycnet.apa.org/fulltext/202...

🚀 Postdoc Alert! Are you passionate about social learning & cultural evolution? @dominikdeffner.bsky.social & I have a 3-year position with freedom to develop your research and work on cutting-edge multiplayer and immersive experiments. Apply by March 30! hmc-lab.com/SocialLearni... Pls share 🙏

Great view of #institutions as “social technologies” that scale trust from small groups to nations by @jliep.bsky.social. Tl;dr - institutions reduce coordination problems to the task of managing small groups of "guardians". But they only work where #socialcapital is strong.

tinyurl.com/4yb2vasx

🚨Recrutement au CREST @crestumr.bsky.social

Ingénieur de recherche CDD 3 ans support computationnel aux sciences sociales

Venez rejoindre notre cellule données appui au sciences sociales computationnelles !

Fiche de poste ▶️ nextcloud.lab.groupe-genes.fr/s/XMe4EGtRfb...

Candidature < 15 avril

In poverty, do people take more or less risk? Some theories contend that they avoid risk out of caution. Others that they take risks (e.g. crime) out of desperation.

In our new paper in BBS, we show that they are the two sides of the same coin: the desperation threshold.

Peer commentary call soon!

The market for marriage - Works in Progress Magazine It is a truth universally acknowledged, that a single man in possession of a good agricultural surplus, must be in want of a wife.

Humans exhibit an astonishing variety of marriage systems. Sometimes monogamous, other times polygamous, occasionally we even marry ghosts. The diversity can seem to defy any general explanation. In my new piece for Works in Progress, I write about the Darwinian logic behind it. 1/

PhD student grant (3 years) on the evolution of written communication My team recruits a PhD student to work under the supervision of Olivier Morin on the evolution of written communication, within a project jointly led by Olivier Morin, Hugo Mercier, and Marc Allassonn...

CALL: a PhD grant (3 years) to do a PhD with me at @cognitionens.bsky.social on the evolution of graphic codes. euraxess.ec.europa.eu/jobs/410213

How-- and why-- institutions work (when they do): "Guarding the Guardians" @jliep.bsky.social @aeon.co (with @marco-giancotti.bsky.social)
(Plus- Bringing Up Baby)

Getting along: roughlydaily.com/2026/02/16/i...

Looking forward to work with @fierycushman.bsky.social and @rebeccasaxe.bsky.social on the moral psychology of authority!

We are thrilled to announce that @lfitouchi.bsky.social has been awarded a Marie Skłodowska-Curie Fellowship to work at Massachusetts Institute of Technology and Harvard University ! 👏

Huge congratulations for this incredible achievement!

Institutions are how we scale up cooperation among millions | Aeon Essays Good institutions are social technologies that scale trust from personal relations to entire nations. How do they work?

Institutions are the social technologies that power our world, allowing us to rely on complete strangers every day of our lives. But how do we ensure that this trust isn’t misplaced? In this Essay, the game theorist Julien Lie-Panis explores what makes institutions function @jliep.bsky.social

This work is based on a paper co-authored with @lfitouchi.bsky.social, Nicolas Baumard & @jbaptistandre.bsky.social.

Nerdy thread 🤓 with more details: bsky.app/profile/jlie...

And the paper itself: www.pnas.org/doi/10.1073/...

New @aeon.co essay just out! On how institutions let us scale trust and cooperation - and when things start to unravel.

Big thanks to editor Sam Dresser.

For the more technical version, see thread & paper below👇

Apres "The Decision" de LBJ, voici "The Update" de BdC.

Demain, 12h heure française, lancement solennel de la v2 de Gallicagram
⌛

💡 Our new #preprint is available online!

How do people adapt their decisions when priorities change?
In our new study, we examine how the way people represent value shapes their ability to adjust in multi-goal environments.

🔗 OSF link: doi.org/10.31234/osf...

It's a thread 🧵

🔺 New preprint 🔺
Why does poverty increase time discounting?
With W. Frankenhuis and @danielnettle.bsky.social, we argue that current models do not account for discounting in *persistent* poverty, and show that a desperation threshold can!

A quick 🧵

How I stood on the shoulders of giants A few years ago I experienced a rare privilege. I saw and and understood a truth about the nature of reality that no-one else had ever seen before.

On my recent paper about linguistic intuition and the nature of language

thomscottphillips.substack.com/p/how-i-stoo...

EDMO BELUX 2.0 Lunch Lecture – Reframing the Misinformation Problem YouTube video by EDMO BELUX

"if anything people are actually maybe too stubborn... there is more room to improve trust in reliable sources than to reduce trust in unreliable sources... instead of teaching lay people to be more critical than they already are"

1/
📢 Come study cognitive science in Paris!
The Master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr is now accepting applications for the next academic year.

🗓 Deadline: February 24, 2026
💻 Apply here: master-cognitive-science.ens.psl.eu/en/applicati...

This call is currently open for a Humanistica-satellite event, that might interest people in computational humanities (and not only). It is supported by CultureLab and welcomes long papers as well as lightning talks and posters.

📢 CfP now open for the Computational Cultural Science Workshop (Paris, 18-19 May 2026) until 16 February.

Topics of interest:
*️⃣AI and cultural datasets
*️⃣Theory-driven humanities research
*️⃣Document-based modelling of historical and social processes
*️⃣Cultural analytics

👉 c2s.sciencesconf.org

I am also hiring a PhD student (4-years, home student only to join the project, starting in September 2026🌏

Please share it widely!
www.royalholloway.ac.uk/studying-her...

Scoop: The leaked protocol of the CDC-funded Hepatitis B vaccine trial in Guinea-Bissau. “This is another Tuskegee.” The protocol reveals that the trial will withhold the Hepatitis B birth dose from thousands—without placebos, without universal maternal screening, and with endpoints critics call indefensible.

Thank you, @jeremyfaust.bsky.social, for this public service; we have all wanted to see the protocol of this deeply unethical trial being funded by RFK Jr in Guinea-Bissau, I’m grateful you obtained it and have published it

insidemedicine.substack.com/p/scoop-the-...

Gallicagram dans Histoire & Mesure !

Department of Social and Behavioral Sciences

🚨Two weeks left to apply for our postdoc positions @tse-fr.eu @iast.fr 🚨

Join me, @giuliandr.bsky.social , & @zhgarfield.com, to study punitive systems across societies.

Full-time positions, 2 years, no teaching

Deadline: Jan 23

Please share and spread the word!

www.tse-fr.eu/groups/depar...

I am hiring a 4y postdoc for my Leverhulme-funded project on the role of beliefs about what in/outgroup members believe/do about climate change in shaping pro-climate behaviours🌏

Start date: May 2026 at latest
Deadline: Feb 8

Please share it widely!

jobs.royalholloway.ac.uk/vacancy.aspx...

The building of the Max Planck Institute for Empirical Aesthetics in Frankfurt

I got wonderful news: I was granted a position of Max Planck independent group leader at the MPI for Empirical Aesthetics ⬇️ (@ae.mpg.de) in Frankfurt, which I'll join in early 2026. It's a huge honor: being trusted with academic freedom offered by MPG. My group will study the evolution of arts. 1/3

Why Do Humans Have Linguistic Intuition? | Cadernos de Linguística

Why do humans have linguistic intuition? And why should you care?

A short thread about my new paper in @cadlin.bsky.social

This work has the most original insight I've ever had, a genuinely new idea about the nature of language

cadernos.abralin.org/index.php/ca...

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