Important new paper on normative bias in research. In a many-analyst design estimates produced by pro- vs anti-immigration teams systematically differ, driven by specification choices. It’s exploratory analysis expanding on a PNAS paper, but findings seem plausible. www.science.org/doi/epdf/10....

Important new paper on normative bias in research. In a many-analyst design estimates produced by pro- vs anti-immigration teams systematically differ, driven by specification choices. It’s exploratory analysis expanding on a PNAS paper, but findings seem plausible. www.science.org/doi/epdf/10....

Two minor updates, friends: - As of 1 January 2026, I'm an Associate Professor. - As of today, the first paper I started writing on palm oil, about a decade ago, is in print in the Journal of International Economics. Read, share, cite. Open access: www.sciencedirect.com/science/arti...

New paper by John Goldthorpe, in the Kölner Zeitschrift für Soziologie und Sozialpsychologie, restating and developing his position on causality. link.springer.com/article/10.1...

23 years ago today, one of the greatest died In memory of Joe Strummer 🖤 ... gone but not forgotten... 📸 Anthony Saint James #punk #punks #punkrock #punklegend #joestrummer #theclash #punkrockhistory #history #otd

We have a new DP @i4replication.bsky.social. It's on IVs - the credibility revolution’s workhorse in economics. To show how problematic they are, we look at what IV aficionados do & think. IV users can dismiss our assessment as too critical, but not theirs, right? 1/6 www.econstor.eu/bitstream/10...

Yeah, that’s been known for at least 30 years. www.nber.org/papers/t0137

We have a new DP @i4replication.bsky.social. It's on IVs - the credibility revolution’s workhorse in economics. To show how problematic they are, we look at what IV aficionados do & think. IV users can dismiss our assessment as too critical, but not theirs, right? 1/6 www.econstor.eu/bitstream/10...

📷New blog post: Where Papers Go Before (and After) rejection at a top field journal? This blog post explore this and more. One key finding is that desk- and referee-rejected manuscripts end up getting published at roughly the same rate elsewhere. i4replication.org/where-papers...

🚨 Now out in Psych Science 🚨 We report an adversarial collaboration (with @donandrewmoore.bsky.social) testing whether overconfidence is genuinely a trait The paper was led by Jabin Binnendyk & Sophia Li (who is fantastic and on the job market!) Free copy here: journals.sagepub.com/eprint/7JIYS...

🆕 A reversing deforestation mechanism for climate and ecosystem restoration Today on VoxDev, Juliano Assunção (Climate Policy Initiative) discusses a proposal to reduce deforestation, protect standing forests, and incentivise reforestation at scale: https://ow.ly/fY6J50XJtEh

We conducted a 10-year follow up on our impact evaluation of Rwanda's electricity access roll-out program - now out in @natcomms.nature.com. Modest short-term impacts sustain, but connection rates stagnate and electricity usage remains on extrenely low levels. www.nature.com/articles/s41...

We conducted a 10-year follow up on our impact evaluation of Rwanda's electricity access roll-out program - now out in @natcomms.nature.com. Modest short-term impacts sustain, but connection rates stagnate and electricity usage remains on extrenely low levels. www.nature.com/articles/s41...

We're thrilled to open registration for our 1st 2026 Replication Games. The event will be at the University of Zurich on January 19th. Psych, public health, pol sci and econ studies will be reproduced! Register here: www.surveymonkey.ca/r/Replicatio...

New paper in the #JARE 📄 🥳 To celebrate 50 years of the Journal of #Agricultural and #Resource #Economics, we contributed our paper "Advancing Agri-Environmental Policy with Behavioral and Experimental Economics: Insights, Innovations, and Future Directions" to the latest special issue. 1/4

Christoph M. Schmidt (RWI) wurde zum 8. Präsidenten der Leibniz-Gemeinschaft gewählt. Alexandra W. Busch @leizarchaeology.bsky.social, Albert Sickmann @isas-leibniz.bsky.social und Barbara Sturm @leibnizatb.bsky.social wurden als Vizepräsident:innen gewählt. Herzlichen Glückwunsch! Zur Mitteilung👇

Special issue on meta-science in Journal of Economic Psychology! Topics covered among others: expert-informed approaches, normative biases and crowd-science. Submitted papers evaluated & published on rolling basis. @i4replication.bsky.social www.sciencedirect.com/special-issu...

Following the publication of two critiques & in conversation with the journal Nature, the authors of the study “The economic commitment of climate change” at PIK have retracted the paper. They will resubmit a new version of the paper for peer review. www.pik-potsdam.de/en/news/late...

This retracted Nature paper was the second most referenced climate paper in 2024

Surprisingly, I4R has never been contacted by any of the authors' universities/funders. This is disappointing given that we documented irregularities in 10+ lengthy reports. That's easily 300 pages of data irregularities.

#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.

Released 33 years ago Rage Against the Machine: Killing In The Name Live at Pinkpop 1993 #punk #punks #punkrock #hardcorepunk #RATM #crossover #history #punkrockhistory

www.uni-hamburg.de/stellenangeb... Unser Fachbereich hat eine unbefristete Stelle E13 in der VWL-Lehre zu besetzen. Gerne retweeten und bis 30.11. bewerben.

36 years ago No Control is the fourth album by American punk rock band Bad Religion, released November 1989 through Epitaph Records. #punk #punks #punkrock #nocontrol #badrelegion #history #punkrockhistory

Economics.

Here is a rock song "HC1 Heartbreak" (MP3 and Lyrics) econ.mathematik.uni-ulm.de/aisongs/hc1_... based on my research paper arxiv.org/abs/2411.14763 on robust standard errors and large scale methodological replications. Made with Suno and ChatGPT. AI amazes me again and again.

“Replication is an ethnography of science, a reflection by the scientists themselves on the scientific process and the challenges of producing results, while being engaged in that very process.” New ethnographic work by Brenninkmeijer et al. Open Access: doi.org/10.1177/0306... 🧵

Our Leibniz Open Science Day, 'Better Science for Better Policies', is taking place tomorrow in Berlin, with an exciting programme of interesting papers - check them out. The meta-scientific community is really taking off! www.zbw.eu/de/ueber-uns...

Apparently some folks are playing real dumb about skull symbols so let’s play a little game I like to call “Nazi skull or not a Nazi skull” First up, the Jolly Roger. This is a pirate skull, not a Nazi skull. It means you might get robbed, but prolly not genocided. With me so far? 1/x

On data quality in surveys run by Prolific, M-Turk etc.

Is there actually any research on the quality of papers based on Prolific, as there was for M-Turk?

No, the "experimental evidence" fallacy. This paper is based on a prolific.com experiment, complemented by some MBA students. Participants were asked to *imagine* (!!) they were certain decision makers. Nothing against this empirical attempt – but calm down and perhaps tone down the paper. 1/3

New in JCRE: “Public Infrastructure and Economic Development: Evidence from Postal Systems A Replication Study of Rogowski et al. (American Journal of Political Science, 2022) by @florianneubauer.bsky.social , Julian Rose and @jrgptrs.bsky.social " www.jcr-econ.org/public-infra...

I thought this was quite a nice (and appropriately pessimistic) discussion of our paper on power in political science. All that I would add is that we found a small minority of research topics with high power! podcasts.apple.com/ca/podcast/i...

We are hosting this year's MAER-Net Colloquium on Friday and Saturday. The program and more information are available here: www.maer-net.org/2025-ottawa Plenary sessions (with Andrew Gelman, Shinichi Nakagawa and others) and some parallel sessions will be live-streamed for free

In fact, the conclusion is clearer than the rather conservative title suggests. "No evidence" is what you say when your null effect is inconclusive. A Bayes Factor of 66 for the null would seem to constitute "Positive evidence for ineffectiveness...". Time to give up and try something stronger!

What do experts think about the famous Acemoglu et al. (2001) – Albouy replication debate? In our new discussion paper, we show that there’s no consensus among them. @jrgptrs.bsky.social ’s thread tells the story: bsky.app/profile/jrgp...

Further robust evidence suggesting green nudges at the individual level are unlikely to make a difference. As we recently suggested, it is time to abandon the prevailing success focus and rather think of this body of evidence as pointing to the many structural constraints people are facing, and

Thought about scientific consensus recently? We have a new DP @i4replication.bsky.social that probes into the famous replication debate between Acemoglu, Johnson & Robinson (AJR) and Albouy - and how experts assess this debate. We find that they disagree. 1/8 www.econstor.eu/bitstream/10...

I'd lie if I said I am surprised.

New piece on growth dependence out in Futures. To account for the possibility that environmental sustainability can only be achieved with lower economic output, this study carries out a thought experiment in which ambitious environmental policies result in economic contraction.

Deeply honoured to receive this award from the Academy of Sociology with my co-authors! I hope we’ll see many more replications in Sociology in the years ahead, along with preregistrations and registered reports as leading journals make more space for them. #AkadSoz25 #sociology

New DP @i4replication.bsky.social: Meta-analysis on green nudges correcting for publication bias. "Behavioral interventions on households and individuals are unlikely to deliver material climate benefits." www.econstor.eu/bitstream/10...

Today is the day!!! Existential Politics is out in the world! Read about why we’re doing climate policy wrong (too focused on measuring emissions) & what we should do instead (focus on $$ to constrain fossil asset owners & expand green asset owners). Just in time for #COP30.

New DP @i4replication.bsky.social : Meta-analysis on the price elasticity of heating and cooling energy demand. www.econstor.eu/bitstream/10...

🌍📈 Paper “The Economics of Inequality and the Environment” out today in the Journal of Economic Literature @aeajournals.bsky.social, joint with Jasper Meya, Lutz Sager & Ulrike Kornek. See short summary and PM by PIK linked below, and the paper here 👉 pubs.aeaweb.org/doi/pdfplus/...

New publication: Designing Carbon Pricing Policies Across the Globe with Robert Schmidt and @moritzdrupp.bsky.social in Environmental and Resource Economics! We present the largest international expert survey on carbon pricing design (400+ participants, ~40 countries). Some highlights.

Insights into Elsevier's business model. "Publishers trade off higher returns in the short run with maintaining prestige in the long run." And I even guess this long-term-prestige objective only applies to upper tier Elsevier journals like Energy Economics.