Konstantinos Ioannidis
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doctoriw.bsky.social
Konstantinos Ioannidis
@doctoriw.bsky.social
820 followers 410 following 29 posts
Postdoctoral Researcher in Economics at University of Cambridge.

Find me here https://konstantinosioannidis.github.io/
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Reposted by Konstantinos Ioannidis
paolocrosetto.bsky.social
Since AI slop is again all over Scientific Reports, a thread on the economics of grey-zone publishing.

Why does slop keep getting published? What does it mean for science? How can we stop this?

Background readings:
Understand the strain: tinyurl.com/2b6wxx5r
Stop the drain: tinyurl.com/3jfscscy
An obviously AI-generated figure with AI slop and fake text all over it, recently published in Scientific Reports.
November 30, 2025 at 11:10 AM
Reposted by Konstantinos Ioannidis
cfcamerer.bsky.social
1/3 NEW our highly interdisciplinary review on habits is out. (psych, econ, animal learning, neuro) This link authors.elsevier.com/c/1mDCZc9~mJ... allows download until Jan 23 of next yr.

It's partly aimed at a marketing academic audience, but covers a lot of ground of general interest.
December 4, 2025 at 3:05 PM
Reposted by Konstantinos Ioannidis
hansonmark.bsky.social
We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing:

a 🧵 1/n

Drain: arxiv.org/abs/2511.04820
Strain: direct.mit.edu/qss/article/...
Oligopoly: direct.mit.edu/qss/article/...
A table showing profit margins of major publishers. A snippet of text related to this table is below. 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. A figure detailing the drain on researcher time. 1. The four-fold drain 1.2 Time The number of papers published each year is growing faster than the scientific workforce, with the number of papers per researcher almost doubling between 1996 and 2022 (Figure 1A). This reflects the fact that publishers’ commercial desire to publish (sell) more material has aligned well with the competitive prestige culture in which publications help secure jobs, grants, promotions, and awards. To the extent that this growth is driven by a pressure for profit, rather than scholarly imperatives, it distorts the way researchers spend their time. The publishing system depends on unpaid reviewer labour, estimated to be over 130 million unpaid hours annually in 2020 alone (9). Researchers have complained about the demands of peer-review for decades, but the scale of the problem is now worse, with editors reporting widespread difficulties recruiting reviewers. The growth in publications involves not only the authors’ time, but that of academic editors and reviewers who are dealing with so many review demands. Even more seriously, the imperative to produce ever more articles reshapes the nature of scientific inquiry. Evidence across multiple fields shows that more papers result in ‘ossification’, not new ideas (10). It may seem paradoxical that more papers can slow progress until one considers how it affects researchers’ time. While rewards remain tied to volume, prestige, and impact of publications, researchers will be nudged away from riskier, local, interdisciplinary, and long-term work. The result is a treadmill of constant activity with limited progress whereas core scholarly practices – such as reading, reflecting and engaging with others’ contributions – is de-prioritized. What looks like productivity often masks intellectual exhaustion built on a demoralizing, narrowing scientific vision. A table of profit margins across industries. The section of text related to this table is below: 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. The costs of inaction are plain: wasted public funds, lost researcher time, compromised scientific integrity and eroded public trust. Today, the system rewards commercial publishers first, and science second. Without bold action from the funders we risk continuing to pour resources into a system that prioritizes profit over the advancement of scientific knowledge.
November 11, 2025 at 11:52 AM
doctoriw.bsky.social
🎉Awarded Cambridge Humanities Research Grants funding🙏

Together with Noriko Amano-Patiño and James Morris, we study statistical discrimination in rental economy (e.g. AirBnb), and how qualitative information in the reviews mitigates it.

Glimpse here: konstantinosioannidis.github.io/research/fak...
The impact of qualitative reviews in online markets: Empirical and experimental evidence on racial statistical discrimination
konstantinosioannidis.github.io
October 24, 2025 at 2:49 PM
Reposted by Konstantinos Ioannidis
aeajournals.bsky.social
Forthcoming in the AER: "Gender Differences in Economics Seminars" by Pascaline Dupas, Amy Handlan, Alicia Sasser Modestino, Muriel Niederle, Mateo Seré, Haoyu Sheng, Justin Wolfers, and Seminar Dynamics Collective. www.aeaweb.org/articles?id=...
Gender Differences in Economics Seminars
(Forthcoming Article) - We assess whether men and women are treated differently when presenting their economics research. We collected data across thousands of seminars, job market talks and conferenc...
www.aeaweb.org
October 21, 2025 at 2:02 PM
Reposted by Konstantinos Ioannidis
sumitra.bsky.social
🚨 out at @apsrjournal.bsky.social 🚨

➡️ We ran a large media literacy experiment to fight misinformation
➡️ 13,500 students, 583 villages in Bihar, India
➡️Created custom misinfo curriculum of 4 months
➡️Partnered w the government to roll it out as an official course in classrooms

hopeful findings👇🏽
October 15, 2025 at 3:33 PM
Reposted by Konstantinos Ioannidis
lisawalsh.bsky.social
Excited to report: Academic Twitter didn’t die, it just replicated itself on Bluesky

academic.oup.com/icb/article-...
Scientists no Longer Find Twitter Professionally Useful, and have Switched to Bluesky
Synopsis. Social media has become widely used by the scientific community for a variety of professional uses, including networking and public outreach. For
academic.oup.com
September 28, 2025 at 10:34 PM
doctoriw.bsky.social
After two years, I am so happy to be back to the ESA conference in Brno hosted by @econmuni.bsky.social.

Looking forward to catching up with colleagues. :)

If you are curious to see how computational complexity interacts with general equilibrium, attend my talk on Saturday 10:40-11:40.
September 2, 2025 at 9:08 PM
Reposted by Konstantinos Ioannidis
clairewillett.bsky.social
this is one of my ultimate “could never get away with this today” movies

genuinely an impeccable way to teach kids that poverty is an artificial social construct and the cops use violence to enforce it

also Friar Tuck is one of cinema’s greatest Catholics I am serious
pleasebegneiss.bsky.social slate @pleasebegneiss.bsky.social · Jul 20
“keep politics out of kids movies”

disney in 1973:
death to tyrants! from disney’s animated robin hood
July 20, 2025 at 2:34 AM
Reposted by Konstantinos Ioannidis
lastpositivist.bsky.social
I decided to make a long blog post combining general sociological things I am aware of with personal observations of cultural and lifestyle differences between the UK and USA.

sootyempiric.blogspot.com/2025/07/comp...
Comparisons Between Life in the UK and the USA
For most of my life I have lived in the UK, but for six years I lived in the United States of America. Somewhat erratic and unpleasant polit...
sootyempiric.blogspot.com
July 19, 2025 at 9:50 AM
doctoriw.bsky.social
I have attended this interdisciplinary conference multiple times in the past, and I always learned a great deal from it. Whether you come from computer science, economics, criminology or other fields, I highly recommend attending it.
cst.cam.ac.uk Cambridge Computer Science @cst.cam.ac.uk · Jun 2
Exploring the trust-building mechanisms that support #cybercrime markets on Telegram, and understanding the techniques #hackers use for exploiting human elements. Two of the topics to be discussed at the annual Cambridge Cybercrime Conference on 23 June. www.cambridgecybercrime.uk/conference20...
The annual Cambridge Cybercrime Conference brings together researchers working in interdisciplinary cybercrime research. In June 2025, the conference will cover topics including trust and identity in cybercriminal ecosystems, technical threats and disruption and resilience in illicit online activites.
June 2, 2025 at 12:38 PM
doctoriw.bsky.social
We're delighted to be organising the 2nd Workshop on Computational Complexity & Economic Decision Making at University of Cambridge.

➡️Newnham College
➡️19-20th May 2025
➡️Register by 11th May: bit.ly/3EGSGqA
May 6, 2025 at 7:05 PM
doctoriw.bsky.social
BEE-UK is a network of UK-based experimental economists established in June 2024. They organise a range of activities including an annual conference.

Anyone interested in behavioural and experimental economics, especially PhD students, are welcome. Join with the link below.
www.bee-uk.org/join-now/
Join now - Behavioural & Experimental Economists UK
www.bee-uk.org
March 23, 2025 at 9:58 PM
doctoriw.bsky.social
ESA is an amazing community to be part of, I have enjoyed the conferences for year after year and looking forward to visiting Brno this year!
March 21, 2025 at 5:47 PM
doctoriw.bsky.social
Currently in Pittsburgh until May for a research visit, drop me a line if you're around!

Thank you to @alistairecon.bsky.social at #universityofpittsburgh and Steve Spear at @carnegiemellon.bsky.social for hosting me.
March 11, 2025 at 3:50 PM
doctoriw.bsky.social
Online experiments have taken a credibility blow recently because of LLMs. As experimental economists and behavioural scientists, we need to think of how we address this issue moving forward.
tfwerner.com Tobias Werner @tfwerner.com · Jan 29
Lots of people responded by saying, "We have to go back to the physical lab."

I agree this is one possible solution. But let's not forget the massive advantages online experiments have brought us. Going back to the lab can only be part of the solution.

🧵👇🏻
tfwerner.com Tobias Werner @tfwerner.com · Jan 24
Just used Gemini Live to participate in a beh. experiment without even reading the instructions or speaking the language.

LLMs acting as participants on platforms like Prolific could pollute data meant to study humans. With OpenAI’s operator model, this issue is growing.

🎥👇
youtu.be/NujyGZSA7Hg
February 24, 2025 at 11:27 AM
doctoriw.bsky.social
My academic website cost me >100£ per year for domain+hosting. Over the holiday break, I made a brand new one on Github where it is competely free.

I had fun learning programming/web-design tricks, and I am now happy to share with the world. Find me here konstantinosioannidis.github.io
Welcome!
konstantinosioannidis.github.io
January 26, 2025 at 10:26 PM
doctoriw.bsky.social
Together with my colleagues Robert Woods and Hassan Andrabi, we are very grateful and excited to have received the 2024 Vernon L. Smith Young Talent Award, for our proposal, "Markets or Patents? A Comparative Study on Incentivising Collective Innovation".
2024 Vernon L. Smith Young Talent Award - Society for Experimental Finance
In 2024, the Society for Experimental Finance awarded two Vernon L. Smith Young Talent Awards for the best research proposals in finance using experimental methodology. Each award comes with $4,000 fo...
expfin.org
December 20, 2024 at 4:49 PM