Reposted by Joop AdemaBart Penders @penders.bsky.social · 21/09/2026Back of the envelope calculations: 3600 years of research time went into the collective application process. The research will fund 3200 years of research. We are 400 research years poorer as a result of this. 1/2 316486
Joop Adema @jopieboy.bsky.social · 04/08/2026Social science research is slow: a policy changes, we wait for data, write it up, submit it -- and by publication the debate has moved on. I don't think that has to be true anymore. Introducing Living Research: real-time policy evaluation that updates itself. 🧵 140
Reposted by Joop AdemaNEP-MIG: Economics of Human Migration @repec-nep-mig.bsky.social · 17/07/2026The Welfare Magnet Hypothesis: Evidence from an Immigrant Welfare Scheme in Denmark: Comment: Adema, Joopd.repec.orgNEP/RePEc linkto paper 011
Reposted by Joop AdemaCESifo @cesifo.org · 01/07/2026🚨 Call for papers: Junior Workshop on Migration Research (Munich) Advanced PhD students, postdocs & assistant professors in economics are invited to submit migration-related papers. 📅 Deadline: 10 July 2026 (midnight CET) 🔗 lnkd.in/dtTyHaVaapp.oxfordabstracts.comOxford Abstracts 001
Reposted by Joop AdemaMark A. Hanson @hansonmark.bsky.social · 13/01/2026We've got ISSUES. Literally. We scraped >100k special issues & over 1 million articles to bring you a PISS-poor paper. We quantify just how many excess papers are published by guest editors abusing special issues to boost their CVs. How bad is it & what can we do? arxiv.org/abs/2601.07563 A 🧵 1/n 17514314
Reposted by Joop AdemaMichel Nivard @michelnivard.bsky.social · 20/12/2025This smells distinctly like collider bias and/or selection bias and/or regression to the mean... You simply can't select teen prodigies, and world class athletes rom databases, and go run regressions without serious consideration of the selection process! 2334869
Reposted by Joop AdemaROCKWOOL Foundation Berlin @rfberlin.bsky.social · 16/12/2025🆕 RFBerlin Discussion Paper! @jopieboy.bsky.social examines how expected asylum seeker arrivals affect far-right voting, using evidence from a dispersal policy that reallocates refugees across locations. 🔗 www.rfberlin.com/wp-content/u... 021
Joop Adema @jopieboy.bsky.social · 03/12/2025Wat voor invloed heeft de spreidingswet gehad op de stemmen voor uiterst-rechts? In mijn artikel laat ik zien dat gemeenten die een AZC moeten openen aanzienlijk meer op PVV/FVD/JA21 hebben gestemd: @lamyae.bsky.social @ninazeelen.bsky.social @guusvalk.bsky.social @chrisaalberts.bsky.social 260
Joop Adema @jopieboy.bsky.social · 03/12/2025🧵 Prior work studied the effect of (refugee) migration on far-right voting, but local inflows can only explain a sliver of the increase in FR voting around refugee waves. In my new WP, find that increased EXPECTATIONS about future migration causally increased FR voting in the Netherlands! 171
Reposted by Joop AdemaFabio Votta📊🐧 @favstats.eu · 11/10/2025Our CampAIgn Tracker got featured in this brilliant piece of investigative journalism by @groene.nl. They reveal the prompts behind an extremely disturbing AI-powered campaign by Dutch politicians that we find is one of the top producers & spreaders of AI-generated content in this election #tk2025. 093
Reposted by Joop AdemaEconomists for Ukraine @econ4ua.bsky.social · 07/10/2025📊Working Paper No. 7: “What Drives Refugees’ Return After Conflict?” Survey of 2,500+ Ukrainian refugees across 30 European countries: territorial integrity and security guarantees are key to return. Read: econ4ua.org/wp-content/u... Submit research: lnkd.in/gf2nQ5WCecon4ua.org 085
Reposted by Joop AdemaCESifo @cesifo.org · 24/09/2025📣New Working Paper “What Drives Refugees' Return After Conflict?” ✒️ @jopieboy.bsky.social @lchargaziia.bsky.social Yvonne Giesing, Sarah Necker & Panu Poutvaara Insights into how conflict resolution, security, economics, and corruption influence return decisions. 🔗 www.ifo.de/en/cesifo/pu... 042
Reposted by Joop AdemaROCKWOOL Foundation Berlin @rfberlin.bsky.social · 05/09/2025🆕 RFBerlin Discussion Paper: @jopieboy.bsky.social, @lchargaziia.bsky.social, Yvonne Giesing, Sarah Necker, and Panu Poutvaara examine the determinants of Ukrainian refugees' return intentions post-conflict. www.rfberlin.com/network-pape... 053
Joop Adema @jopieboy.bsky.social · 18/08/2025(1/10) New paper at PNAS: what predicts Ukrainian refugees’ destination choice? We experimentally study the drivers of location choice in a conjoint design: we find that job opportunities, wages and networks are most important, much more so than welfare benefits. 274
Reposted by Joop AdemaIan Hussey @ianhussey.mmmdata.io · 05/07/2025I am often told that public critique of published articles must also solve the issues found. I think this frequently enforced requirement hinders scientific self-correction. Blog post: mmmdata.io/posts/2025/0... 310722
Joop Adema @jopieboy.bsky.social · 01/07/2025Update #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... 23612
Reposted by Joop AdemaJohanna Rickne @johannarickne.bsky.social · 24/06/2025📣 Submit your paper to the Leibniz Open Science Day! I will be there to talk about our recent experience with replicating Ciacci (2024) about impacts of the Swedish legislation that banned sex purchases. Call for papers: www.zbw.eu/de/ueber-uns... 1113
Reposted by Joop AdemaCESifo @cesifo.org · 25/06/2025A warm welcome to @jopieboy.bsky.social ! 🌟 Thrilled to have him in the network! He researches labor economics and political economy of international migration.📊 🔍 His research: jopieadema.github.io 🔗 www.ifo.de/en/cesifo/ne... 011
Reposted by Joop AdemaCESifo @cesifo.org · 12/06/2025📣Call for papers: 𝗖𝗘𝗠𝗜𝗥 𝗝𝘂𝗻𝗶𝗼𝗿 𝗘𝗰𝗼𝗻𝗼𝗺𝗶𝘀𝘁 𝗪𝗼𝗿𝗸𝘀𝗵𝗼𝗽 𝗼𝗻 𝗠𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵, 28 - 29 October 2025, Munich Keynote Speaker: Jens Hainmueller (Stanford) ℹ️ www.ifo.de/en/event/202... 👉 Submit by 30 June: app.oxfordabstracts.com/stages/78037... @sebastianschirner.bsky.social @econmunich.bsky.social 068
Joop Adema @jopieboy.bsky.social · 18/06/2025🧵Replication: Can refugee flows be lowered by reducing welfare? Agersnap et al. (2020, AER:I) study this in Denmark, reporting lower benefits strongly reduce migration flows. I reanalyze this paper, finding a much more nuanced result. 182
Reposted by Joop AdemaOsteuropa-Institut @osteuropainstitut.bsky.social · 27/05/2025📣 Join us for the annual Richard Löwenthal Lecture on "Return and Return Intentions of Ukrainian Refugees" by Prof. Panu Poutvaara. 🇺🇦 📅 11.06.2025, 4 PM 📍 Hörsaal A, OEI, Garystr. 55, 14195 Berlin 🔗 tinyurl.com/LOE25 @freieuniversitaet.bsky.social 064
Reposted by Joop AdemaAchim Zeileis @zeileis.org · 05/06/2025📢 Come work with us! 🏛️ Faculty of Economics & Statistics, UIBK @econstatuibk.bsky.social @uniinnsbruck.bsky.social ‼️ Three job openings for Full Professor positions - Data Science - Microeconomics - Behavioral Economics Please share! #datascience #economics www.uibk.ac.at/de/info-beru...uibk.ac.atAktuelle Ausschreibungen – Universität InnsbruckNone 12417
Reposted by Joop AdemaCESifo @cesifo.org · 24/05/2025𝗖𝗘𝗦𝗶𝗳𝗼 𝗔𝗿𝗲𝗮 𝗖𝗼𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝗟𝗮𝗯𝗼𝗿 𝗘𝗰𝗼𝗻𝗼𝗺𝗶𝗰𝘀, oganized by 𝗚𝗼𝗿𝗱𝗼𝗻 𝗗𝗮𝗵𝗹 is ending. 👏to @jopieboy.bsky.social on winning the Affiliate Award. Great presentations by @ursina.bsky.social @aadukia.bsky.social, @martinauccioli.bsky.social. 🙏 A special thanks to 𝗔𝗻𝗻𝗮 𝗔𝗶𝘇𝗲𝗿 for her keynote and to all presenters! 0164
Reposted by Joop AdemaThilo N. H. Albers @thiloalbers.bsky.social · 17/05/2025We are looking to hire post-doc interested in working on migration, citizenship, and diaspora. Come join us in Münster! Generous contract + no teaching for 2 years. Many details and link to job add here: sites.google.com/site/tnhalbe... Please PM me incase you have questions!sites.google.comThilo N. H. Albers - Job ads2 years postdoc with a thematic focus on Migration, Diaspora, Citizenship 11418
Reposted by Joop AdemaOlle Folke @ollefolke.bsky.social · 15/05/2025Update: We submitted the comment to the Journal of Population Economics, and today we got a desk reject with this motivation. However, we do not know their conclusion about the main results and why the paper was not retracted. Clearly, they do not hold. 1/4 68533
Reposted by Joop AdemaInstitute for Replication @i4replication.bsky.social · 09/05/2025A 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 🧵 25024
Reposted by Joop AdemaJohanna Rickne @johannarickne.bsky.social · 09/05/2025🚨 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.🧵 7386198
Reposted by Joop AdemaLili Vargha @lilivargha.bsky.social · 03/04/2025Anomalies & data problems are found in the Hungarian EU SILC income data from around year 2017. It is very likely that the data was manipulated to decrease the poverty rate. Annamaria Tatrai and Andras Gabos conducted a very thorough investigation of the issue: www.valaszonline.hu/2025/04/01/e... 311739
Reposted by Joop AdemaJoël Machado @joelmachado.eu · 08/01/2025With @jeromevalette.bsky.social & Simone Bertoli, we are thrilled to announce the Call for Papers for the 3rd edition of the Junior Workshop on the Economics of Migration on 23-24 June 2025 @CERDI, Clermont-Ferrand, France. Submit until 23 February 2025 on economig2025.sciencesconf.org 27767
Reposted by Joop AdemaERROR @error.reviews · 08/01/2025We are excited to announce the review of Lades et al. (2020) "Daily emotional well-being during the COVID-19 pandemic". Based on the review by Joop Adema, we find Moderate Errors which do not affect the core conclusions. We recommend the authors seek a correction error.reviews/reviews/lade...error.reviewsLades et al. (2020)ERROR is a bug bounty program for science to systematically detect and report errors in academic publications 12216