Andreas Kotsadam

Good morning. A coda (from me) on this replication business.

While I understand the impulse, it is disheartening that most of the discussion generated by this replication is about the replication "process" -- both the APSR's process and my own process.

What could we be talking about instead?

#GDRI_rep Update 9: We have been waiting a couple of months to make two announcements. A few journals were in the process of retracting GDRI article. The editors informed the authors and then lawyers got involved. Who knows how long it will take.

🚨 Our comment on Begum, Grossman & Islam (2018) in @readdemography.bsky.social is now available as an @i4replication.bsky.social working paper (w/ @carlbonander.bsky.social, @nikljako.bsky.social, Bensch & Brodeur). Read it here 👉 www.econstor.eu/bitstream/10...

Happy and thankful that our WP "Debating threats to authoritarian rule: Inclusion and Discrimination in the Legislative Council of Northern Rhodesia" has won the David Olson Award 2025!

rc08.ipsa.org/post/2025/09...

1/4

We are hiring! Join a strong team to have a real impact on how science is done😊
#econsky

How to Publish Statistically Insignificant Results in Economics blogs.worldbank.org/en/impacteva...

Still a challenge!

Paper is here. Demonstrates with a very large sample the same phenomenon we saw previously in a somewhat smaller sample in Ethiopia: list experiments can produce fleeing behavior that leads to negative prevalence rates
papers.ssrn.com/sol3...
www.tandfonline.com/...

The answer to this excellent question from @kotsadam + Løvgren: yes! List experiments do not, in general, seem to be an effective tool for measuring IPV; we should not use them unless there is a convincing reason to think otherwise

Great day at the Frisch Centre, hosted by @kotsadam.bsky.social , presenting ongoing work on the integration paradox

#GDRI_rep Update 8a: Major updates coming up over the next few weeks.

1st update: We reproduced "Parent–teacher meetings and student outcomes" some time ago. The paper was then retracted by the editors of the Euro Econ Rev.

Additional studies are connected (see diagram)
🧵

Development programs in war zones Did development aid in Afghanistan help counter the Taliban’s insurgency?

Development aid can help suppress insurgencies, but it may be counterproductive in areas where insurgents came from outside of local communities, say researchers at @theworldbank.bsky.social, @mit.edu, and @upf.edu. #econsky www.aeaweb.org/research/dev...

Fascinating new paper shows that papers reporting statistical significance get at least 60% more media attention #econtwitter #econsky: from
Brodeur Cook @nikolaimcook @taylor_wright, a short 🧵

🚨 New research alert! 🚨

Check out this recent paper by Johannes Bergh, Dag Arne Christensen and @finseraas.bsky.social on the impact of early voting on partners mobilisation. Available open access here: www.sciencedirect.com/science/arti...

New preprint out with @aleksandermadsen.bsky.social, where we show that later-arriving childhood immigrants have lower earnings, are more likely to enter manual occupations, and are less likely to enter analytical and language-intensive jobs and be employed in high-wage firms as adults.

"It's the economy, stupid"

Voters vote based on the economy.

But there are many economic performance indicators. Which matter the most?

This new paper shows voters react to growth, unemployment, inflation, & stock markets.

But the inflation plays the biggest role.

www.ifau.se/globalassets...

10 Conversations that Implementers and Evaluators Need to Have buff.ly/9lWzMqZ #EGAPMethodsGuide

Do family-friendly hours make it easier for women politicians to participate in meetings? 🕚

In a new working paper, I find they don’t. 🧵1/10

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...

Important paper from @anderskjelsrud.bsky.social and Sahar!

Every authoritarian who successfully destroyed judicial independence did so because civil society failed to unite in time. The key difference? Whether people mobilized.

🧵 When authoritarian leaders attack judges as "enemies," history shows us exactly where this leads. Trump's assault on "USA HATING JUDGES" isn't just inflammatory rhetoric—it's following a script written by strongmen worldwide. But other countries show us how to fight back.

Indeed

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

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 🧵

🚨 REPLICATION REPORT UPDATE: One year ago, a tweet by John Holbein alerted me, @ollefolke.bsky.social, and @jopieboy.bsky.social to a paper with a shocking result about Sweden’s law criminalizing the purchase of sex.🧵

9/ Based on our initial and extended replications, we wonder: how can the editor still trust the results of this paper? If this case does not meet the criteria for retraction, what does?

10/ Please help share our extended replication to correct the record on this misleading policy evaluation!

Full replication text here: www.econstor.eu/handle/10419...

🚨 New #EconHistory research alert!
Our paper “Strikes & Machines: Investment decisions in inter‑war Norway” conditionally accepted in Journal of Economic History ask
"What did strike threats really do to technology?"
👇 1/6

Replication probe finds ‘statistically improbable data’ tied to institute in Bangladesh Asad Islam A Bangladesh-based organization focused on development economics and its founder have been churning out papers filled with misstatements, inconsistencies, ethical lapses and “statistical…

The Islam - GDRI saga is gaining some traction.

retractionwatch.com/2025/04/10/r...

I was on the Good on Paper podcast at the Atlantic discussing a paper joint with Cody Tuttle and Jorg Spenkuch: