Tobias Werner
@tfwerner.com
Postdoc the Center for Humans and Machines (CHM/MPIB) | PhD in Economics | Affiliated with DICE/HHU & BCCP
I am on the economic job market 2024/2025.
Currently visiting the EconCS group @ Harvard.
Tfwerner.com
I am on the economic job market 2024/2025.
Currently visiting the EconCS group @ Harvard.
Tfwerner.com
Pinned
Tobias Werner
@tfwerner.com
· Nov 8
📢 I am on the economic job market 🚀
My JMP "Algorithmic and Human Collusion" shows pricing algorithms can be more collusive than humans and explores their interaction.
Link: papers.ssrn.com/sol3/papers....
Other research: tfwerner.com
#EconSky #EconJM #JMP
My JMP "Algorithmic and Human Collusion" shows pricing algorithms can be more collusive than humans and explores their interaction.
Link: papers.ssrn.com/sol3/papers....
Other research: tfwerner.com
#EconSky #EconJM #JMP
LLMs and agents are reshaping the landscape of social science research.
Our preprint on "LLM Pollution" is featured in @ScienceMagazine's new piece on how Al is upending online studies.
www.science.org/content/arti...
Our preprint on "LLM Pollution" is featured in @ScienceMagazine's new piece on how Al is upending online studies.
www.science.org/content/arti...
AI may upend online studies critical to social science
Sophisticated bots risk contaminating surveys, games, and other approaches designed to shed light on human behavior
www.science.org
December 23, 2025 at 9:11 AM
LLMs and agents are reshaping the landscape of social science research.
Our preprint on "LLM Pollution" is featured in @ScienceMagazine's new piece on how Al is upending online studies.
www.science.org/content/arti...
Our preprint on "LLM Pollution" is featured in @ScienceMagazine's new piece on how Al is upending online studies.
www.science.org/content/arti...
Reposted by Tobias Werner
Our dept is hiring an associate professor in microeconomics / competition theory.
It is a wonderful department - do get in touch.
The job ad is in German but we teach more and more in English, so we‘re flexible.
www.hu-berlin.de/en/universit...
It is a wonderful department - do get in touch.
The job ad is in German but we teach more and more in English, so we‘re flexible.
www.hu-berlin.de/en/universit...
W2-Professur für „Wettbewerbspolitik“ - Humboldt-Universität zu Berlin
www.hu-berlin.de
December 17, 2025 at 1:43 PM
Our dept is hiring an associate professor in microeconomics / competition theory.
It is a wonderful department - do get in touch.
The job ad is in German but we teach more and more in English, so we‘re flexible.
www.hu-berlin.de/en/universit...
It is a wonderful department - do get in touch.
The job ad is in German but we teach more and more in English, so we‘re flexible.
www.hu-berlin.de/en/universit...
Reposted by Tobias Werner
Huge shout-out to our PhD students presenting their research at the @unisouthampton.bsky.social ’s Doctoral Research Poster Showcase this week! 🎓 #PhDLife #ResearchExcellence #PhD #DoctoralResearch #Southampton #AcademicShowcase
November 28, 2025 at 10:42 AM
Huge shout-out to our PhD students presenting their research at the @unisouthampton.bsky.social ’s Doctoral Research Poster Showcase this week! 🎓 #PhDLife #ResearchExcellence #PhD #DoctoralResearch #Southampton #AcademicShowcase
Reposted by Tobias Werner
Our department hosted a great seminar this week by my colleague @tfwerner.com titled "Experimental Evidence That Conversational AI Can Steer Consumer Behavior Without Detection". Eye-opening insights into conversational AI and consumer choices! #AIResearch #BehavioralEconomics #AcademicResearch
November 27, 2025 at 10:57 AM
Our department hosted a great seminar this week by my colleague @tfwerner.com titled "Experimental Evidence That Conversational AI Can Steer Consumer Behavior Without Detection". Eye-opening insights into conversational AI and consumer choices! #AIResearch #BehavioralEconomics #AcademicResearch
📣 New paper! "Delegate Pricing Decisions to an Algorithm? Experimental Evidence" with @normann.bsky.social, Nina Rulié, & @ostypa.bsky.social
We study what happens when humans delegate to a collusive algorithm, and AI pricing adoption becomes a strategic choice!
arXiv: arxiv.org/abs/2510.27636
We study what happens when humans delegate to a collusive algorithm, and AI pricing adoption becomes a strategic choice!
arXiv: arxiv.org/abs/2510.27636
Delegate Pricing Decisions to an Algorithm? Experimental Evidence
We analyze the delegation of pricing by participants, representing firms, to a collusive, self-learning algorithm in a repeated Bertrand experiment. In the baseline treatment, participants set prices ...
arxiv.org
November 3, 2025 at 11:30 AM
📣 New paper! "Delegate Pricing Decisions to an Algorithm? Experimental Evidence" with @normann.bsky.social, Nina Rulié, & @ostypa.bsky.social
We study what happens when humans delegate to a collusive algorithm, and AI pricing adoption becomes a strategic choice!
arXiv: arxiv.org/abs/2510.27636
We study what happens when humans delegate to a collusive algorithm, and AI pricing adoption becomes a strategic choice!
arXiv: arxiv.org/abs/2510.27636
The fact that fries/chips are just normally sold at Chinese restaurants in Ireland should be studied. But still: spice bag is the best fast food invention since ???
September 22, 2025 at 11:44 AM
The fact that fries/chips are just normally sold at Chinese restaurants in Ireland should be studied. But still: spice bag is the best fast food invention since ???
First day in the office!
Excited to join the University of Southampton as an Assistant Professor/Lecturer
Excited to join the University of Southampton as an Assistant Professor/Lecturer
September 1, 2025 at 1:32 PM
First day in the office!
Excited to join the University of Southampton as an Assistant Professor/Lecturer
Excited to join the University of Southampton as an Assistant Professor/Lecturer
I like the new robot 'personality' feature of ChatGPT. Although it's probably just a tweak to a system message, it's much more to the point and less wordy.
Just weird that, out of the blue, it sometimes ends with things like, 'I am synthesized and not embodied.'
Just weird that, out of the blue, it sometimes ends with things like, 'I am synthesized and not embodied.'
August 10, 2025 at 7:48 AM
I like the new robot 'personality' feature of ChatGPT. Although it's probably just a tweak to a system message, it's much more to the point and less wordy.
Just weird that, out of the blue, it sometimes ends with things like, 'I am synthesized and not embodied.'
Just weird that, out of the blue, it sometimes ends with things like, 'I am synthesized and not embodied.'
Reposted by Tobias Werner
We have our first games ever in Ireland next month. The event will be at the University of Galway as part of CERIS’s Annual Workshop on September 26th. Virtual participation is possible and coauthorship to a meta paper is granted.
Register here: www.surveymonkey.ca/r/Replicatio...
Register here: www.surveymonkey.ca/r/Replicatio...
August 6, 2025 at 2:34 PM
We have our first games ever in Ireland next month. The event will be at the University of Galway as part of CERIS’s Annual Workshop on September 26th. Virtual participation is possible and coauthorship to a meta paper is granted.
Register here: www.surveymonkey.ca/r/Replicatio...
Register here: www.surveymonkey.ca/r/Replicatio...
With the release of Gemini Live / OpenAls Operator, we started working o
perspective piece on how to tackle the growing threat these systems pose to online behavioural research and its validity.
We hope this helps move the conversation forward.
Paper: arxiv.org/abs/2508.01390
perspective piece on how to tackle the growing threat these systems pose to online behavioural research and its validity.
We hope this helps move the conversation forward.
Paper: arxiv.org/abs/2508.01390
August 6, 2025 at 4:24 PM
With the release of Gemini Live / OpenAls Operator, we started working o
perspective piece on how to tackle the growing threat these systems pose to online behavioural research and its validity.
We hope this helps move the conversation forward.
Paper: arxiv.org/abs/2508.01390
perspective piece on how to tackle the growing threat these systems pose to online behavioural research and its validity.
We hope this helps move the conversation forward.
Paper: arxiv.org/abs/2508.01390
🚨New paper alert!
"Recognising, Anticipating & Mitigating LLM Pollution of Online Behavioural Research"
Online experiments are being polluted by LLMs. We map the threat and fixes🧵
w/ Raluca Rilla, @hiromu1996.bsky.social, @iyadrahwan.bsky.social &
Anne-Marie Nussberger
arxiv.org/abs/2508.01390
"Recognising, Anticipating & Mitigating LLM Pollution of Online Behavioural Research"
Online experiments are being polluted by LLMs. We map the threat and fixes🧵
w/ Raluca Rilla, @hiromu1996.bsky.social, @iyadrahwan.bsky.social &
Anne-Marie Nussberger
arxiv.org/abs/2508.01390
Recognising, Anticipating, and Mitigating LLM Pollution of Online Behavioural Research
Online behavioural research faces an emerging threat as participants increasingly turn to large language models (LLMs) for advice, translation, or task delegation: LLM Pollution. We identify three int...
arxiv.org
August 5, 2025 at 8:04 AM
🚨New paper alert!
"Recognising, Anticipating & Mitigating LLM Pollution of Online Behavioural Research"
Online experiments are being polluted by LLMs. We map the threat and fixes🧵
w/ Raluca Rilla, @hiromu1996.bsky.social, @iyadrahwan.bsky.social &
Anne-Marie Nussberger
arxiv.org/abs/2508.01390
"Recognising, Anticipating & Mitigating LLM Pollution of Online Behavioural Research"
Online experiments are being polluted by LLMs. We map the threat and fixes🧵
w/ Raluca Rilla, @hiromu1996.bsky.social, @iyadrahwan.bsky.social &
Anne-Marie Nussberger
arxiv.org/abs/2508.01390
Sitting on the beach, sipping cherry cola (sin azúcar), just won three straight games of Uno against my wife. Life is good.
August 2, 2025 at 12:00 PM
Sitting on the beach, sipping cherry cola (sin azúcar), just won three straight games of Uno against my wife. Life is good.
Last day of my postdoc with some of the best colleagues I could have hoped for.
July 31, 2025 at 9:28 AM
Last day of my postdoc with some of the best colleagues I could have hoped for.
Reposted by Tobias Werner
Mengchen Dong @iyadrahwan.bsky.social and I report data from 3,000+ people (incl. welfare claimants) showing how much accuracy they're willing to sacrifice to get faster AI decisions for social benefits. it's very hard for non-claimants to understand claimants. www.nature.com/articles/s41...
Heterogeneous preferences and asymmetric insights for AI use among welfare claimants and non-claimants - Nature Communications
Governments use AI to speed up welfare decisions, raising concerns about fairness and accuracy. Here, the authors find that welfare claimants are more averse to AI and their preferences less understoo...
www.nature.com
July 30, 2025 at 10:36 AM
Mengchen Dong @iyadrahwan.bsky.social and I report data from 3,000+ people (incl. welfare claimants) showing how much accuracy they're willing to sacrifice to get faster AI decisions for social benefits. it's very hard for non-claimants to understand claimants. www.nature.com/articles/s41...
Thrilled to share that this September I’ll be joining @sotonecon.bsky.social at @unisouthampton.bsky.social pton.bsky.social as a Lecturer 🎉
I look forward to continuing my research in IO, experimental economics, and human-AI interactions, and to engaging more with the UK econ community.
I look forward to continuing my research in IO, experimental economics, and human-AI interactions, and to engaging more with the UK econ community.
July 8, 2025 at 1:21 PM
Thrilled to share that this September I’ll be joining @sotonecon.bsky.social at @unisouthampton.bsky.social pton.bsky.social as a Lecturer 🎉
I look forward to continuing my research in IO, experimental economics, and human-AI interactions, and to engaging more with the UK econ community.
I look forward to continuing my research in IO, experimental economics, and human-AI interactions, and to engaging more with the UK econ community.
You gotta love German academia. Receiving a letter (yes, an actual letter, not an email) many, many months after applying just to tell you that you won't be considered for the professorship is always quite the experience.
July 3, 2025 at 5:08 PM
You gotta love German academia. Receiving a letter (yes, an actual letter, not an email) many, many months after applying just to tell you that you won't be considered for the professorship is always quite the experience.
So happy to see this in print! What began as my Master’s thesis in Bonn 7 years ago is now published in Experimental Economics.
With @adrianecon.bsky.social & Fabian Winter
doi.org/10.1017/eec....
With @adrianecon.bsky.social & Fabian Winter
doi.org/10.1017/eec....
Willingness to volunteer among remote workers is insensitive to the team size | Experimental Economics | Cambridge Core
Willingness to volunteer among remote workers is insensitive to the team size
doi.org
July 1, 2025 at 11:22 AM
So happy to see this in print! What began as my Master’s thesis in Bonn 7 years ago is now published in Experimental Economics.
With @adrianecon.bsky.social & Fabian Winter
doi.org/10.1017/eec....
With @adrianecon.bsky.social & Fabian Winter
doi.org/10.1017/eec....
Reposted by Tobias Werner
Does anyone know a paper that specifically looks at the share of online samples (Prolific, MTurk, etc.) relative to lab studies/field studies in recent years? I feel like I saw some stats on that sometime ago on X, but I can’t find it.
June 27, 2025 at 2:52 PM
Does anyone know a paper that specifically looks at the share of online samples (Prolific, MTurk, etc.) relative to lab studies/field studies in recent years? I feel like I saw some stats on that sometime ago on X, but I can’t find it.
Does anyone know a paper that specifically looks at the share of online samples (Prolific, MTurk, etc.) relative to lab studies/field studies in recent years? I feel like I saw some stats on that sometime ago on X, but I can’t find it.
June 27, 2025 at 2:52 PM
Does anyone know a paper that specifically looks at the share of online samples (Prolific, MTurk, etc.) relative to lab studies/field studies in recent years? I feel like I saw some stats on that sometime ago on X, but I can’t find it.
Nur weil es jetzt woanders schlechter läuft, bietet das deutsche akademische System nicht plötzlich Top-Bedingungen. Die strukturellen Probleme sind massiv. Das darf nicht von der Reformnotwendigkeit ablenken.
www.zeit.de/2025/23/wiss...
www.zeit.de/2025/23/wiss...
Wissenschaftsstandort Deutschland: Plötzlich begehrt wie Harvard
Trump vertreibt die klügsten Köpfe aus den USA. Und plötzlich ist Deutschland wieder begehrt. Diese Chance sollten wir nutzen – die Forschung hier hat einiges zu bieten.
www.zeit.de
May 29, 2025 at 1:37 PM
Nur weil es jetzt woanders schlechter läuft, bietet das deutsche akademische System nicht plötzlich Top-Bedingungen. Die strukturellen Probleme sind massiv. Das darf nicht von der Reformnotwendigkeit ablenken.
www.zeit.de/2025/23/wiss...
www.zeit.de/2025/23/wiss...
Happy to be flying back to Berlin next week, but proud to be visiting an institution with the courage to stand its ground and fight back.
May 22, 2025 at 7:36 PM
Happy to be flying back to Berlin next week, but proud to be visiting an institution with the courage to stand its ground and fight back.
Reposted by Tobias Werner
The "Berlin Center for AI Research in Economics and Management" (BAIREM) was founded at TU Berlin.
With its work, the center strengthens the interface between technology, business and society - and makes an important contribution to responsible digital transformation.
Find us: tu.berlin/wm/bairem
With its work, the center strengthens the interface between technology, business and society - and makes an important contribution to responsible digital transformation.
Find us: tu.berlin/wm/bairem
Berlin Center for AI Research in Economics and Management - TU Berlin
tu.berlin
May 19, 2025 at 5:14 AM
The "Berlin Center for AI Research in Economics and Management" (BAIREM) was founded at TU Berlin.
With its work, the center strengthens the interface between technology, business and society - and makes an important contribution to responsible digital transformation.
Find us: tu.berlin/wm/bairem
With its work, the center strengthens the interface between technology, business and society - and makes an important contribution to responsible digital transformation.
Find us: tu.berlin/wm/bairem
Reposted by Tobias Werner
We did not want to start the week like this, but here we are. Yet again our chair’s inbox is filled with messages from replicators who have opened “replication” folders only to find names, Social Insurance Numbers, mental-health diagnoses and incomes of study participants. 🧵
May 13, 2025 at 12:44 PM
We did not want to start the week like this, but here we are. Yet again our chair’s inbox is filled with messages from replicators who have opened “replication” folders only to find names, Social Insurance Numbers, mental-health diagnoses and incomes of study participants. 🧵
Reposted by Tobias Werner
A new discussion paper "Suspicion and Communication" (w/ Lisa Bruttel and Friedericke Fromme) is out now! Check it out: ideas.repec.org/p/pot/cepadp...
1/N
@cepa-unipotsdam.bsky.social
1/N
@cepa-unipotsdam.bsky.social
May 6, 2025 at 10:34 AM
A new discussion paper "Suspicion and Communication" (w/ Lisa Bruttel and Friedericke Fromme) is out now! Check it out: ideas.repec.org/p/pot/cepadp...
1/N
@cepa-unipotsdam.bsky.social
1/N
@cepa-unipotsdam.bsky.social
Being in Philly for the #IIOC2025 reminds me how much my connection to US history comes entirely from American movies.
Looking at Independence Hall, all I can picture is Nicolas Cage sprinting across the roof in National Treasure.
Looking at Independence Hall, all I can picture is Nicolas Cage sprinting across the roof in National Treasure.
May 2, 2025 at 5:51 PM
Being in Philly for the #IIOC2025 reminds me how much my connection to US history comes entirely from American movies.
Looking at Independence Hall, all I can picture is Nicolas Cage sprinting across the roof in National Treasure.
Looking at Independence Hall, all I can picture is Nicolas Cage sprinting across the roof in National Treasure.