Institute for Replication

On Jan 19th, we held the first Replication Games of 2026 at the University of Zurich! We had 47 participants reproducing papers from economics, political science, and psychology with great success. Many thanks to local organizers Johannes Ullrich and Joanna Rutkowska!

All studies were computationally reproduced by the Economic Inquiry's data editor.

Kudos to Economic Inquiry for supporting open, cumulative, and reproducible science!

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".

On gender and political economy, Bagues, Campa, and Etingin-Frati replicates Gagliarducci & Paserman (2022).

On crime and prosecution, Kaplan, Naddeo, and Scott provide a reassessment of Hogan (2022).

On forecasting and macro uncertainty, Benyo, Ellwanger, and Snudden revisit and replicate Baumeister and Kilian's 2012 work.

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.

On cooperation, reciprocity and the commons, Drouvelis & Qiu revisits experimental evidence and explores how income inequality shapes cooperative behavior.

On investor sentiment and stock returns, Leong, Li, Li, Peng, and Xu replicates and extends the classic Baker & Wurgler (2006) analysis.

On public health policy and opioid-related ER admissions, Sergey Alexeev re-examines Doleac & Mukherjee (2022).

On trade and identity, Gonzalez & Özak reproduces and extends earlier work by Dickens.

On culture and history, Bertoli, Clerc, Loper, and Roca Fernández reproduces Giuliano & Nunn (2021) "Understanding cultural persistence and change".

On innovation & immigration, Taylor J. Wright reassesses “How much does immigration boost innovation?”, a widely cited result linking immigration to innovative activity.

Economic Inquiry: Vol 63, No 2 Click on the title to browse this issue

While part I (onlinelibrary.wiley.com/toc/14657295...) highlights new research that advances our understanding & practice of replication, part II reproduces and re-assesses influential articles.

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🧵

This NHB article that a I4R fellow reproduced is now retracted and a matters arising has been published. See this thread for more information: bsky.app/profile/jack...

🚨 CALL FOR PAPERS 🚨
Research In Labor Economics (rle.iza.org) is planning a volume featuring critical analyses of applied economics research. We are soliciting up to ten new papers that rigorously review an applied microeconomics topic, area, or methodology. #econsky

📷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...

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...

Measuring Development Conference 2026 The annual Measuring Development Conference co-hosted with the Center for Effective Global Action (CEGA).

Call for speakers! MeasureDev2026, Open Science in the Age of AI: Balancing Privacy and Transparency

Reflect on a decade of progress in open science while outlining a path for transparency and replicability amid rapid shifts in technology, data, and computation.

www.worldbank.org/en/events/20...

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...

🚨 Our comment on Begum, Grossman & Islam (2018) is now out in Demography @readdemography.bsky.social (w/ @carlbonander.bsky.social, Bensch, @nikljako.bsky.social & Brodeur @i4replication.bsky.social): doi.org/10.1215/0070...

Don’t Panic: A Researcher’s Guide to Replication Packages Episode 1: A New README Who Needs a README? Imagine coming across a really cool paper in a top journal. The kind of paper you wish you wrote yourself; the…

🚨New blog post: Replicators, rejoice! Episode 1 of the new series is out: “A New README.” A practical guide to transforming messy project folders into clear, well-structured documentation that strengthens transparency and reproducibility.

See more at
i4replication.org/dont-panic-a...

We believe reproducibility is the cornerstone of trustworthy science, which is why we will be systematically reaching to authors, building replication packages, and testing robustness directly.
See more at:
i4replication.org/the-reproduc...

In our latest post, we explore what happens when data and code go missing:

Out of 553 public health studies, only 19.3% made their data public

In economics, the situation is better but far from perfect: 46.7% of studies have a full replication package...

🚨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...

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 :)

📍 See full details & apply now at: i4replication.org/i4r-research...

As a Fellow you’ll:
• Be listed on our website with your affiliation
• Have the opportunity to release working papers in our Discussion Paper series
• Receive priority updates on I4R meta-studies, journal submissions & collaboration opportunities.

📢 We’re thrilled to announce the launch of our new “Research Fellows” program! 🎉

If you’ve contributed to a Replication Game, published in our Discussion Papers series, or helped organize one of our events — you’re invited to join the roster of I4R Research Fellows.