Institute for Replication
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i4replication.bsky.social
Institute for Replication
@i4replication.bsky.social
The Institute for Replication (I4R) works to improve the credibility of science by promoting and conducting reproductions and replications.

i4replication.org
On climate and long-run growth, Cook, Cordeau, Li, and Wright reproduce and re-assess Waldinger's "The economic effects of long-term climate change".
January 12, 2026 at 6:09 PM
On gender and political economy, Bagues, Campa, and Etingin-Frati replicates Gagliarducci & Paserman (2022).
January 12, 2026 at 6:09 PM
On crime and prosecution, Kaplan, Naddeo, and Scott provide a reassessment of Hogan (2022).
January 12, 2026 at 6:09 PM
On forecasting and macro uncertainty, Benyo, Ellwanger, and Snudden revisit and replicate Baumeister and Kilian's 2012 work.
January 12, 2026 at 6:09 PM
On global inequality, Angenendt, Mariuzzo, and Zhang reassess a study by Sampson on the impact of international technology gaps on income inequality, trade, and wages.
January 12, 2026 at 6:09 PM
On cooperation, reciprocity and the commons, Drouvelis & Qiu revisits experimental evidence and explores how income inequality shapes cooperative behavior.
January 12, 2026 at 6:09 PM
On investor sentiment and stock returns, Leong, Li, Li, Peng, and Xu replicates and extends the classic Baker & Wurgler (2006) analysis.
January 12, 2026 at 6:09 PM
On public health policy and opioid-related ER admissions, Sergey Alexeev re-examines Doleac & Mukherjee (2022).
January 12, 2026 at 6:09 PM
On trade and identity, Gonzalez & Özak reproduces and extends earlier work by Dickens.
January 12, 2026 at 6:09 PM
On culture and history, Bertoli, Clerc, Loper, and Roca Fernández reproduces Giuliano & Nunn (2021) "Understanding cultural persistence and change".
January 12, 2026 at 6:09 PM
On innovation & immigration, Taylor J. Wright reassesses “How much does immigration boost innovation?”, a widely cited result linking immigration to innovative activity.
January 12, 2026 at 6:09 PM
Part II of the Economic Inquiry Symposium on Reproducibility & Replicability is out!

This issue brings together a new set of re-examinations of influential papers in economics.

Here’s a quick summary🧵
January 12, 2026 at 6:09 PM
📷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...
December 18, 2025 at 1:53 PM
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...
December 11, 2025 at 1:29 PM
🚨New blog post: The Reproducibility Gap in Tropical Disease Research

Tropical diseases remain one of the greatest global health challenges, yet much of the evidence guiding interventions may not be as reliable as we assume...
December 3, 2025 at 2:58 PM
Last Friday we held Munster Replication Games (@uni-muenster.de jointly with #MüCOS and #CDSC). Sixty researchers replicated fifteen papers: well done, everybody! Many thanks to the local organizers as well, @bschlipphak.bsky.social and @aufdroeseler.bsky.social and Katrin Schmietendorf :)
December 1, 2025 at 3:01 PM
Together w/ @odissei.bsky.social, I4R is organizing CBS Replication Games, re-analyzing 6 papers w/ Dutch administrative microdata! Teams get 1 month of microdata access in Feb 2026, meeting in Utrecht for a three-day hackathon. Interested? Register by Nov 30! tinyurl.com/yx3e7b3a
November 25, 2025 at 1:07 PM
We won't be releasing any additional info on social media until the situation is resolved with lawyers, but will keep releasing reports through our DP series. Here are two 40-page reports completed earlier this year.

econpapers.repec.org/paper/zbwi4r...
econpapers.repec.org/paper/zbwi4r...
October 30, 2025 at 1:41 PM
We are hosting virtual Replication Games on Friday November 13th, 2025 with @ukrepro.bsky.social ro.bsky.social. This is our 2nd year collaborating with UKRN. Psych, public health, pol sci and econ studies will be reproduced!

Register here: www.surveymonkey.ca/r/I4R_Replic...
October 20, 2025 at 6:21 PM
We are hosting Replication Games at the 95th Meeting of the Southern Economics Association on Friday November 21st, 2025. This is a new collaboration with the SEA!

Register here: www.surveymonkey.ca/r/Replicatio...
October 15, 2025 at 12:55 PM
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
October 15, 2025 at 12:45 PM
Big thanks to our research scientist, Derek Mikola, for organizing 4 games over the past 2 weeks. Lots of planes/trains from Galway, to Berlin, Paris and now Lyon. Today's event in Lyon is underway!
October 9, 2025 at 12:08 PM
We also document changes in language about the randomization between the working paper and published version, and inconsistencies in the authors’ response. See full report (here osf.io/wp8fr/) for more details.
August 27, 2025 at 3:33 PM
the opposite—that the study neither involved nor required experimental group assignment.
August 27, 2025 at 3:33 PM
The data show that group assignment was inherited from the retracted EER study --> they use a subset of the data. Although both studies state that randomization occurred at the household level, the treat variable in the replication data is constant within villages. See figure 2.
August 27, 2025 at 3:33 PM