Joel van der Weele's Avatar

Joel van der Weele

@joelvdweele.bsky.social

Professor of Economic Psychology (University of Amsterdam). Works on inequality, fairness, motivated reasoning using experiments, surveys, game theory. https://www.joelvanderweele.eu/

1,060 Followers  |  154 Following  |  26 Posts  |  Joined: 12.10.2023  |  2.2015

Latest posts by joelvdweele.bsky.social on Bluesky

🚨 Incredibly excited about this 🚨

Thread below

11.06.2025 19:11 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

@shengwuli.bsky.social @lyariv.com @georgweizsaecker.bsky.social @dgrand.bsky.social @claesdevreese.bsky.social @lionelpage.bsky.social @toreellingsen.bsky.social @sweiwang.bsky.social @ddpace.bsky.social @jonathanhaidt.bsky.social

20.05.2025 18:54 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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New working paper alert: we provide a model of post-hoc rationalizations, driven by motives of (self-)esteem. We show how this can lead to groupthink, polarization, and a preference for echo chambers.

www.ifo.de/sites/defaul...

20.05.2025 18:54 β€” πŸ‘ 43    πŸ” 8    πŸ’¬ 1    πŸ“Œ 3
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Incredibly powerful investigation in Dutch newspaper NRC: Seven of the world’s leading genocide scholars β€” including renowned Holocaust experts β€” describe Israel’s actions in Gaza as genocidal.

And according to them, nearly all of their peers agree.

15.05.2025 01:09 β€” πŸ‘ 528    πŸ” 296    πŸ’¬ 11    πŸ“Œ 45
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Voters Like Climate Policies More Than You Think | ifo Institute Key Messages Voters are willing to make sacrifices for climate change, and they endorse costly climate policies. Voters support green investments even when the investments are funded via carbon taxes....

"Voters Like Climate Policies More Than You Think".

New policy piece for EconPol Forum based on recent research findings

www.ifo.de/en/econpol/p...

Key messages:
1️⃣ Voters are willing to make sacrifices for climate
change, and they endorse costly climate policies

#EconSky #ClimateChange
1/3

05.05.2025 08:21 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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Excited about our new working paper "Giving as a self-control problem". We look at information avoidance as an emotion regulation strategy in charitable giving decisions. We find evidence for both strategic avoidance and strategic seeking of emotions.

Paper:
papers.tinbergen.nl/25023.pdf

30.04.2025 13:37 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

awesome, I might take some inspiration from this for my public econ course.

18.04.2025 08:18 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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The new report from @vdeminstitute.bsky.social is sobering.

Freedom of expression πŸ“‰
Quality of elections πŸ“‰
Number of countries democratising πŸ“‰
Number of countries autocratising πŸ“ˆ

There is nuance, but this conclusion "Level of democracy for the average world citizen is back to 1985" πŸ’”
www.v-dem.net

01.04.2025 09:13 β€” πŸ‘ 10    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0

Europe and Canada, it increasingly looks like that we have a once-in-a-lifetime opportunity to build the strongest scientific infrastructure in our history β€” which, in the middle run, would also increase our economic growth

28.03.2025 08:02 β€” πŸ‘ 75    πŸ” 25    πŸ’¬ 2    πŸ“Œ 3

We are pleased to announce an experiment intended to stimulate academic discussion and exchange, centered on papers published in Econometrica 1/5

27.03.2025 12:36 β€” πŸ‘ 122    πŸ” 40    πŸ’¬ 2    πŸ“Œ 15

Sterke motie! Helaas zijn we zelf ook druk bezig met bezuinigen op talent in het hoger onderwijs.

19.03.2025 10:31 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Als het aan Trump ligt is het β€œMake America Stupid Again”.

Trump bezuinigt al het VS-talent weg. Laten we deze slimme koppen naar Europa halen, om hier aan onze toekomst te bouwenβ€”bijvoorbeeld voor klimaat, AI en defensie.

Vanmiddag stemming over onze motie πŸ‘‡

fd.nl/samenleving/...

19.03.2025 09:55 β€” πŸ‘ 291    πŸ” 45    πŸ’¬ 23    πŸ“Œ 5

Want to square your contribution to Ukraine?
πŸ‘‡

03.03.2025 14:26 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

I had a bad experience both times: We got rejected despite large effort without clear justification. It felt like we got treated like a new submission.

02.03.2025 11:46 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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2-Year Postdoctoral Researcher (f/m/d, 100 %) Organisational Design, RCTs with firms

πŸ“£ Exciting postdoc position! Please share!

Interested in Organisation Design and running RCTs with organisations?

2 years postdoc in the Market Design department
@ZEW, no teaching!

jobs.zew.de/jobposting/1...

24.02.2025 16:14 β€” πŸ‘ 6    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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Welvaart in Europa en de VS is vooral een kwestie van smaak Moeten we in de komende economische strijd met de VS dan maar meer op de Amerikanen gaan lijken? Hoeft niet. Het idee van welvaart in Europa en de VS is ook een kwestie van traditie en smaak.

www.nrc.nl/nieuws/2025/... "Welvaart in Europa en de VS is vooral een kwestie van smaak" door @maartenschinkel.bsky.social

27.02.2025 19:27 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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EU leaders plan €20B Ukraine aid package as Trump turns against Zelenskyy As the U.S. turns its back, Europe is scrambling to step up.

Go, Europe!πŸ‡ͺπŸ‡Ί

www.politico.eu/article/eu-w...

21.02.2025 21:02 β€” πŸ‘ 249    πŸ” 30    πŸ’¬ 7    πŸ“Œ 1
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How Europe must respond as Trump and Putin smash the post-war order The region has had its bleakest week since the fall of the Iron Curtain. The implications have yet to sink in

How Europe must respond as Trump and Putin smash the post-war order
econ.st/3CP3cex

20.02.2025 23:28 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Iedere dag breken onze leiders onze banden met de buitenwereld verder af. Enorm schadelijk voor het Nederlandse belang.

Dit kabinet keert ons land naar binnen in een wereld die juist nu vraagt om internationale en Europese samenwerkingβ€”ontwikkelingssamenwerking is een kracht.

20.02.2025 09:53 β€” πŸ‘ 479    πŸ” 81    πŸ’¬ 37    πŸ“Œ 6
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Trump uit scherpe kritiek op Zelensky en geeft OekraΓ―ne de schuld van de oorlog Oorlog in OekraΓ―ne: In dit blog doet NRC verslag van de ontwikkelingen in de oorlog in OekraΓ―ne. Lees meer artikelen in ons dossier.

OekraΓ―ne had nooit de oorlog moeten beginnen, aldus Trump.

Als wij Trump niet onze toekomst willen laten bepalen, als wij geen wereld willen waar tirannie vrij spel krijgt maar waar vrede en vrijheid regeren, dan nemen we als Europa nu het heft in eigen handen.

www.nrc.nl/nieuws/2025/...

19.02.2025 08:00 β€” πŸ‘ 433    πŸ” 88    πŸ’¬ 27    πŸ“Œ 3

βœ‹ can you add me too?

19.02.2025 19:53 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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A manifesto for the simple scribe – my 25 commandments for journalists | Tim Radford Former Guardian science editor, letters editor, arts editor and literary editor Tim Radford has condensed his journalistic experience into a handy set of rules for aspiring hacks

'If in doubt, assume the reader knows nothing. However, never make the mistake of assuming that the reader is stupid. The classic error in journalism is to overestimate what the reader knows and underestimate the reader's intelligence.'

www.theguardian.com/science/blog...

12.02.2025 16:33 β€” πŸ‘ 12    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1

trailer is great!

10.02.2025 20:30 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

right, but prolific (and similar platforms) have an existential incentive to develop screening techniques. Hard to predict who will win this arms race, but I guess we should keep our physical labs around.

10.02.2025 16:34 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

well, there are many studies that compare lab to online, and my take-away is that the results typically replicate. But you have convinced me AI is a real threat!

10.02.2025 16:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thank you so much, this is very helpful. I would imagine Prolific being extremely concerned about this, and so should we.

10.02.2025 16:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I see, very interesting.

So you think they did the entire experiment with some kind of AI-plugin?

Are you aware of Prolific taking any action on this?

10.02.2025 15:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

In what sense would this be different from bots? We have ways to identify bots... Perhaps mainstream AIs are prohibited from posing as human, when asked?

But indeed, if there is no way to screen these 'agents', I agree it's the end of online experimentation.

10.02.2025 15:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

How did you identify those responses?

10.02.2025 15:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

ok, that's alarming. Prolific and/or the researchers will need to find a screening procedure for this, or Paolo will be correct after all.

Maybe mainstream AI's are programmed to say they are AI in case they are asked?

10.02.2025 14:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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