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Olle Folke @ollefolke.bsky.social · 30/06/2026

In short, there is no evidence of a treatment effect in the follow-up study either. Leaving this out gives readers the impression that an effect might exist. 4/4

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Olle Folke @ollefolke.bsky.social · 30/06/2026

Erroneous coding of the season dummies produces the same kind of multicollinearity problem as the original study. Once we correct the coding error, the point estimates shrink to half their size and are no longer significant. 3/4

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Olle Folke @ollefolke.bsky.social · 30/06/2026

Ciacci's central argument against the retraction is that some specifications in his follow-up article produce positive, significant estimates of a similar magnitude to the original. But the follow-up contains a coding error of its own. 2/4

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Olle Folke @ollefolke.bsky.social · 30/06/2026

The article omits a fact that is central to the whole story. We have just published a peer-reviewed critique in the journal Evaluation Review (doi.org/10.1177/0193...), in which we re-analyze both the original article and Ciacci's follow-up. 1/4

doi.org

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

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Olle Folke @ollefolke.bsky.social · 28/05/2026

You said it takes time, not that you would eventually provide the files.

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Olle Folke @ollefolke.bsky.social · 28/05/2026

You did not ask for more time. We said that you would share the files if we wrote a paper together.

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Olle Folke @ollefolke.bsky.social · 28/05/2026

As evident from my responses I interpreted your responses as saying no, and I still do. But we do agree that it did not end our debate and you where also right that I would find errors.

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Olle Folke @ollefolke.bsky.social · 28/05/2026

I am sorry, but here, you clearly say no to sharing the replication files.

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Olle Folke @ollefolke.bsky.social · 28/05/2026

I am sorry, but "not considered publishable" is not what you wrote. And another journal did decide to publish it, so it actually was "scientifically publishable evidence". And again, as far as I understand, the committee found our first report to be correct.

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Olle Folke @ollefolke.bsky.social · 27/05/2026

I am sorry Ricardo. you are not describing the situation. The situation was that the journal desk rejected the second report. This is not the same as the report not being publishable.

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Olle Folke @ollefolke.bsky.social · 27/05/2026

And correct me if I am wrong, the committee found our report to be correct.

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Olle Folke @ollefolke.bsky.social · 27/05/2026

Very happy to have this paper on a promising sexual harassment intervention published! For those interested in a non-technical summary, we have also written a policy brief based on the paper. freepolicybriefs.org/2026/05/25/c...

freepolicybriefs.org

Combating Tolerance for Sexual Harassment With Information: Evidence From a Field Experiment

New research shows how correcting sexual harassment misperceptions can reduce tolerance for harassment and improve workplace culture.

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Olle Folke @ollefolke.bsky.social · 27/05/2026

We are in complete agreement with the journal mismanaging the whole thing. It would have been better for everyone involved if they had actually reviewed our two reports. That said, it is something different from the evidence not being publishable.

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Olle Folke @ollefolke.bsky.social · 11/05/2026

we can look at class background based on parental occupation since the 1980's and it has been flat since then, so elite surnames do look like a nice approximation!

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Olle Folke @ollefolke.bsky.social · 07/05/2026

What do you mean by "no scientific publishable evidence"?

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Olle Folke @ollefolke.bsky.social · 10/03/2026

I just wrote a policy brief summarizing our research on how sexual harassment affects gender inequality in the labor market. We argue that discrimination in work conditions, such as sexual harassment, is a key reason why women work in workplaces and occupations with lower pay.

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Olle Folke @ollefolke.bsky.social · 30/01/2026

📈 TODAY is the last day to answer our short survey on interpreting research graphs! supsy.eu.qualtrics.com/jfe/form/SV_... ... we are now looking for people with some spare time to read our paper draft... please send us a message if this might be you 🤗

lnkd.in

This link will take you to a page that’s not on LinkedIn

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Olle Folke @ollefolke.bsky.social · 13/01/2026

📣Help needed! We are trying to reach people outside Europe with our short survey on research graphs! Could you share the link with someone? Take the survey yourself? Thanks in advance!! 🙏🌷🙏 (Europeans still welcome, of course!) supsy.eu.qualtrics.com/jfe/form/SV_...

supsy.eu.qualtrics.com

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Olle Folke @ollefolke.bsky.social · 29/12/2025

It is to complement a regular longer survey. We are also particularly interested in the population we reach in this manner.

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Olle Folke @ollefolke.bsky.social · 29/12/2025

❗ Help needed ❗ Please take our 5-minute survey about interpreting research graphs 📈 And please help us share this post with lots of people 🤗 supsy.eu.qualtrics.com/jfe/form/SV_... Thank you!!

supsy.eu.qualtrics.com

Qualtrics Survey | Qualtrics Experience Management

The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.

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Reposted by Olle Folke

Joop Adema @jopieboy.bsky.social · 03/12/2025

🧵 Prior work studied the effect of (refugee) migration on far-right voting, but local inflows can only explain a sliver of the increase in FR voting around refugee waves. In my new WP, find that increased EXPECTATIONS about future migration causally increased FR voting in the Netherlands!

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Reposted by Olle Folke

Stockholm Institute of Transition Economics (SITE) @sitestockholm.bsky.social · 10/09/2025

Why are workers underrepresented in Swedish politics—despite being half the electorate? In a new SNS Analys report, SITE’s Olle Folke and co-author Johanna Rickne find that structural barriers—not lack of ambition—keep workers from power. ➡️ Read the report (in Swe): www.sns.se/artiklar/sns...

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Johanna Rickne @johannarickne.bsky.social · 24/06/2025

📣 Submit your paper to the Leibniz Open Science Day! I will be there to talk about our recent experience with replicating Ciacci (2024) about impacts of the Swedish legislation that banned sex purchases. Call for papers: www.zbw.eu/de/ueber-uns...

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Olle Folke @ollefolke.bsky.social · 08/07/2025

Looking for recommendations on a professional proofreader with experience of political science papers! (Our regular proofreader is not available)

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Olle Folke @ollefolke.bsky.social · 01/07/2025

He does not actually say what happens to the main results of the paper when we correct for the coding error.

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Joe Noonan @joenoonan.se · 01/07/2025

I really recommend this podcast episode on the story of this paper and the strange non-responses from the journal. A depressing case of how science fails to be self-correcting even in the face of extremely obvious errors. open.spotify.com/episode/4Eo0...

open.spotify.com

Allegedly does not replicate | Episode 18 (Replication case)

Allegedly Does Not Replicate · Episode

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Reposted by Olle Folke

Joop Adema @jopieboy.bsky.social · 01/07/2025

Update #2, RETRACTED: 15 months after we (w @ollefolke.bsky.social and @johannarickne.bsky.social ) submitted the initial comment to the Journal, we've noticed the paper was ultimately retracted. Retraction note here: link.springer.com/article/10.1...

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Olle Folke @ollefolke.bsky.social · 17/05/2025

If it was a mea culpa, already the abstract should state that the main result of the paper was due to a coding error and that there is no evidence of an effect when correcting it. This is not clearly stated anywhere in the comment. The title is of course also misleading.

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Olle Folke @ollefolke.bsky.social · 17/05/2025

Not sure if it even is a mea culpa…

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Olle Folke @ollefolke.bsky.social · 16/05/2025

We have sent it to another journal.

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Olle Folke @ollefolke.bsky.social · 16/05/2025

Yes, the paper has been widely spread

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Olle Folke @ollefolke.bsky.social · 15/05/2025

That there is no evidence of an effect.

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Olle Folke @ollefolke.bsky.social · 15/05/2025

In his published comment, the editor writes the following about the replication files" This substantial additional material was published with replication files and access to the data for further analysis and debate." At the same time, the matter seems to be closed. 4/4

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Olle Folke @ollefolke.bsky.social · 15/05/2025

This is the journal's policy for retractions. Does the editor still have confidence in the findings of the main analysis? 3/4

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Olle Folke @ollefolke.bsky.social · 15/05/2025

In the comment "Ciacci (2025)" the author himself acknowledges that the main results do not hold up. Since the journal has published the comment, we can assume they agree with this conclusion. 2/4

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Olle Folke @ollefolke.bsky.social · 15/05/2025

Update: We submitted the comment to the Journal of Population Economics, and today we got a desk reject with this motivation. However, we do not know their conclusion about the main results and why the paper was not retracted. Clearly, they do not hold. 1/4

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Olle Folke @ollefolke.bsky.social · 12/05/2025

We submitted the report on the partial replication in March 2024, but the journal did not do anything with it. We are yet undecided on what to do with this updated report.

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Olle Folke @ollefolke.bsky.social · 10/05/2025

This is a complete misrepresentation by the journal of what happened. We first sent the comment to the author. Then, we submitted it to the journal. Finally, we posted it on social media.

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Olle Folke @ollefolke.bsky.social · 09/05/2025

The journal did not answer and the author said it took to much time, that there was maybe data restrictions and that we were ideologically biased.

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Olle Folke @ollefolke.bsky.social · 09/05/2025

They did post an almost complete replication package, which allowed us to replicate the 4 alternative identification strategies. It turns out none are robust. For a full description, see Johanna's thread and the @i4replication.bsky.social working paper www.econstor.eu/handle/10419...

econstor.eu

Re-Analysis of Ciacci, R. (2024). Banning the purchase of sex increases cases of rape: evidence from Sweden.

EconStor is a publication server for scholarly economic literature, provided as a non-commercial public service by the ZBW.

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Olle Folke @ollefolke.bsky.social · 09/05/2025

After one year of waiting, we finally got a response from the Journal of Population Economics about our replication of "Banning the purchase of sex increases cases of rape: evidence from Sweden", confirming the major coding error that invalidates the main results, but not retracting the paper. 1/2

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Institute for Replication @i4replication.bsky.social · 09/05/2025

A re-analysis of Ciacci's (2024) "Banning the purchase of sex increases cases of rape: Evidence from Sweden" Journal of Population Economics reveals major issues. A year ago, reproducers Adema, Folke, and Rickne found coding errors driving the paper's key results. Let's unpack this in a 🧵

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Olle Folke @ollefolke.bsky.social · 09/05/2025

It doesn't if you use the correct commands.

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Reposted by Olle Folke

Michal Grahn @grahn.bsky.social · 09/05/2025

🧵 What kind of POPE do AMERICANS want?📸 Before the Conclave, @sophiemainz.bsky.social and I asked 1,500 U.S. adults to choose among hypothetical papal candidates. Results: Americans prefer a liberal and *non-political* Pope. The latter might be challenging for Leo XIV. Results ⬇️ Polisky Datasky

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Olle Folke @ollefolke.bsky.social · 24/04/2025

I am extremely happy with this year's selection Skytte Prize winner, and to welcome Herbert to our department for the award ceremony! Also, we just joined Bluesky, so make sure to follow @uu-polisci.bsky.social!

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Reposted by Olle Folke

Cambridge University Press Political Science & IR @cambup-polsci.cambridge.org · 11/04/2025

New Cambridge Element 'Family Matters: How Romantic Partners Shape Politicians' Careers' by @ollefolke.bsky.social, Moa Frödin Gruneau & @johannarickne.bsky.social is out now. Read #OpenAccess here - cup.org/4csSJ5x #cambridgeelements #politics

Front cover of new Cambridge Element 'Family Matters: How Romantic Partners Shape Politicians' Careers' by Rickne, Folke and Gruneau

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