Jan Feld

@econfeld.bsky.social

Economist interested in meta-science and open science. https://janfeld.weebly.com/

Kiwis: ever stood in a supermarket aisle trying to work out whether the bigger pack is actually cheaper? Sometimes it’s not. When the larger package is more expensive per unit than the smaller one, it’s called a quantity surcharge. Madhura Banerjee and I looked for these in NZ supermarkets. 🧵

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1/ Can AI help researchers check whether published social science results actually reproduce? In our new PNAS paper, we tested this directly in the AI Replication Games: 288 researchers, 103 teams, and real replication packages from quantitative social science.

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New working paper with Amol Singh Raswan and Chris Udry: "The Sisyphean Pursuit of Evidence for Poverty Traps." A central idea in development economics is that poverty can trap people. We went looking for the cleanest evidence. Here's what we found – and didn't.

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Psychology has a whole cottage industry in which people come up with some construct that is essentially "attitudes/beliefs/expectations/feelings about X", and then the central claim is that this construct is a super important determinant of future X outcomes.>

📣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_...

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You can do this right now: Think of a person who wrote a paper you love, whose work influenced or helped you, or has made your professional life better. Search up their email address. Shoot them a quick email of thanks. It means so, so much. This is a rough time of year, share some joy.

I used to think that people use the “weasel word causal inference strategy” (“our analyses show that X is an important predictor of…” followed by conclusions that are clearly causal) for the sake of plausible deniability. But I’m revising that now, because often deniability *isn’t* plausible.>

I've been working on a new tool, Refine, to make scholars more productive. If you're interested in being among the very first to try the beta, please read on. Refine leverages the best current AI models to draw your attention to potential errors and clarity issues in research paper drafts. 1/

Once upon a time, two science journalists had an idea for a blog about retractions. And on Aug. 3, 2010, Retraction Watch launched. And now, 15 years and 6,700 posts later, that work seems more important than ever. Happy 15th anniversary, Retraction Watch.

Happy 15th anniversary, Retraction Watch

Once upon a time, a long time ago, two science journalists had an idea for a blog about retractions. And on Aug. 3, 2010, Retraction Watch launched, detailing in the first post why retractions matt…

retractionwatch.com

Our special issue seeks to foster novel theoretical and empirical papers that treat scaling as an object of study in its own right—exploring its methodological foundations, economic incentives, institutional challenges, and pathways to impact. Please spread the word! ideas.repec.org/p/feb/artefa...

Call for Papers: Special Issue on the Science of Scaling

We are excited to announce a special issue dedicated to the “Science of Scaling†in the Journal of Political Economy: Microeconomics. This special issue aims to advance rigorous, interdisciplinary

ideas.repec.org

Today, scaling has evolved far beyond its origins as a mere objective. It now represents a rich domain for scientific inquiry, demanding contributions from economics and allied disciplines. As such, I am excited to announce a special issue on scaling at the JPE-Micro!