🧵1/4 🚨 We have finalized our DID textbook! You’ve run out of excuses for sketchy pre-trends and mysterious TWFE coefficients. 📘 Credible Answers to Hard Questions: Differences-in-Differences for Natural Experiments By Chaisemartin & D’Haultfœuille. papers.ssrn.com/sol3/papers....

Pleased to share op-ed in Le Monde: "Impact Evaluation: For GAFAM or for Citizens?" 🔗 French version (Le Monde): www.lemonde.fr/idees/articl... 🔗 English translation (Sciences Po): www.sciencespo.fr/department-e... Tech companies routinely use impact evaluation tools to optimize their services...

« Les outils d’évaluation sont sous-utilisés par ceux qui les financent, à savoir les Etats »

TRIBUNE. L’évaluation d’impact, qui permet par exemple de tester l’efficacité des politiques publiques, est massivement captée par les géants du numérique, alors que ces outils sont souvent créés par ...

lemonde.fr

Looking forward to presenting “Electoral Discrimination Reconsidered”, with Selen Onculoglu at #CPSA_ACSP25 The last few years have seen a) major changes in racial politics b) new null results c) methodological developments. So: do ethnic minority candidates really get less votes?

Very excited to teach, with Moussa Richard Kouamé, in the 2025 Africa Summer School of the Econometrics Society, in ENSEA Abidjan! The class will be about DIDs (what else?), following our textbook. Looking forward to it! www.econometricsociety.org/regional-act... papers.ssrn.com/sol3/papers....

new preprint "On the Foundations of the Design-Based Approach" from Aronow, Jang, and Offer-Westort

I created a shiny web tool to play around with OL/TWFE so you can teach how this stuff can get so screwy. You can mess with temporal and cohort heterogeneity, treatment timing, whether you have any controls, etc. Share your worst plots! #econsky cannoncloud.shinyapps.io/TWFE_OLS_Pla...

Happy to share videos of 12-hour course on DIDs I taught at @liser.lu in Luxemburg. Covers in depth the first 7 chapters of our textbook, and last chapter more quickly. Use it to teach yourself (for free!) recent developments on DID! Thanks ‪@andreaecon.bsky.social‬ for class and videos!

Andrea Albanese@andreaecon.bsky.social · last yr.

🎥 The recording of the Difference-in-Differences course by Prof. @cdechaisemartin.bsky.social , which I had the pleasure of organizing at @liser.lu , is now online! 📚 12 hours covering everything from the basics to advanced methods. 👉 Watch the course here: www.youtube.com/playlist?lis... #EconSky

Just posted updated version of our DID textbook! We now have drafts of all chapters, including the one on general designs! Now you can tell your friends still on X that they are DID-outdated :-) Happy easter for those of you that celebrate it. papers.ssrn.com/sol3/papers....

🚩New version of a working paper now available!🚩 "Rounding the (Non)Bayesian Curve: Unraveling the Effects of Rounding Errors in Belief Updating" with Yaroslav Rosokha papers.ssrn.com/sol3/papers.... A thread 👇👇 #Bayes #TeachBE #EconSky

Day 2 of the course on Difference-in-Differences (DiD) at the Jane Jacobs Conference Room, LISER, with Prof. Clément de Chaisemartin @cdechaisemartin.bsky.social. ℹ️ Learn more: www.liser.lu/course-diffe... Organised by @andreaecon.bsky.social & Pierre Imhoff 🤝 #EconSky #Econometrics #Education

🏁 Day 2 of Prof. Clément de Chaisemartin's visit concludes with a seminar: "Difference-in-Differences Estimators of Intertemporal Treatment Effects" 🙏 Big thanks to @cdechaisemartin.bsky.social and organisers @andreaecon.bsky.social et al. ℹ️ www.liser.lu/course-diffe... #EconSky #Econometrics

Please RT: I am hiring RAs, for 12-month contracts, starting in June/July or early September 2025. Apply if you’re interested in working on some fun and useful econometrics projects! #EconSky euraxess.ec.europa.eu/jobs/331499

Research Assistant ERC REALLYCREDIBLE

Clément de Chaisemartin is looking for research assistants, for 12 months contracts, starting in June/July or early September 2025.

euraxess.ec.europa.eu

Last chance to register for our Difference-in-Differences course with Prof. Clément de Chaisemartin (@cdechaisemartin.bsky.social), taking place tomorrow and Wednesday – April 1st & 2nd! Join us at @liser.lu or online for this free course. Register now: www.liser.lu/fr/course-di... #EconSky

testing

LISER's public research focuses on social and economic policies, including their spatial dimension. Its mission is to provide the scientific community and society with clear, relevant and solid answer...

liser.lu

👋 A big LISER welcome to Prof. Clément de Chaisemartin (@cdechaisemartin.bsky.social) who has arrived in #Luxembourg to give a 2-day course on Difference-in-Differences (DiD). ℹ️ Learn more: www.liser.lu/course-diffe... 💪Organised by @andreaecon.bsky.social et al. #EconSky #Econometrics #Education

📘 Ready for Day 2 of our hybrid Difference-in-Differences course at @liser.lu with Prof. Clément De Chaisemartin (@cdechaisemartin.bsky.social) Still possible to join for Days 3 & 4 (April 1–2, 2025)! Free online registration is open: 👉 www.liser.lu/course-diffe... #EconSky #CausalInference

Difference-in-Differences

LISER's public research focuses on social and economic policies, including their spatial dimension. Its mission is to provide the scientific community and society with clear, relevant and solid answer...

liser.lu

Andrea Albanese@andreaecon.bsky.social · 2y ago

📢 Excited to kick off our 12-hour hybrid course on Difference-in-Differences today, led by Prof. Clément De Chaisemartin (@cdechaisemartin.bsky.social) at LISER. Still time to join! Free online registration open for Days 3 & 4 (April 1–2, 2025): www.liser.lu/fr/course-di.... #EconSky

📢 Excited to kick off our 12-hour hybrid course on Difference-in-Differences today, led by Prof. Clément De Chaisemartin (@cdechaisemartin.bsky.social) at LISER. Still time to join! Free online registration open for Days 3 & 4 (April 1–2, 2025): www.liser.lu/fr/course-di.... #EconSky

⭐LISER is honoured to host a 12-hour course on Difference-in-Differences, led by Prof. Clément de Chaisemartin, starting today. ℹ️ Free registration for Days 3 and 4 is still possible! ℹ️ Learn More & Register here: www.liser.lu/course-diffe... . @andreaecon.bsky.social @cdechaisemartin.bsky.social

Difference-in-Differences

LISER's public research focuses on social and economic policies, including their spatial dimension. Its mission is to provide the scientific community and society with clear, relevant and solid answer...

liser.lu

Slowly but surely coming along: we have a new version of our working textbook on diffs in diffs! papers.ssrn.com/sol3/papers.... Chapters 2 to 4, which cover the set up, classical DIDs, and relaxations of the parallel trends assumptions have been thoroughly revised and are now almost finished.

We have a 4th Stata package, multisit_regLATE, to estimate sign of reg coefficients of sites' LATEs on characteristics. For instance, can be used to test if LATEs positively correlated to sites' first stages (consistent w Roy model). ssc install multisite, then run it once to install 4 packages.

Clément de Chaisemartin@cdechaisemartin.bsky.social · 2y ago

@Antoinedeeb.bsky.social and I have new paper and Stata commands, to estimate & predict treatment-effect heterogeneity in multi-site RCTs! papers.ssrn.com/sol3/papers.... Estimators computed by multisite_varITT multisite_regITT and multisite_varLATE Stata packages, available from SSC.

Today some of the leading economists released a report on how to improve the publication and peer review process in our profession. It is great! www.econometricsociety.org/uploads/docu...

Wild stuff. How come no one thought of this

Alexandra de Gendre@adegendre.bsky.social · 2y ago

Today some of the leading economists released a report on how to improve the publication and peer review process in our profession. It is great! www.econometricsociety.org/uploads/docu...

Do you work on topics related to employment and labor relations? Submit an individual paper or panel to LERA@ASSA 2026! LERA will be sponsoring a number of sessions, and they usually are well-attended. Submission deadline 3/15. #EconSky #EconConf

Raymond Hicks (@arpie71.bsky.social) has just posted a vast amount of "raw" interwar trade data; it is available at github.com/arpie71/inte... #econhist

GitHub - arpie71/interwar: Interwar Trade data

Interwar Trade data. Contribute to arpie71/interwar development by creating an account on GitHub.

github.com

Ok. You guys just did the theory I desperately needed.

Clément de Chaisemartin@cdechaisemartin.bsky.social · 2y ago

@Antoinedeeb.bsky.social and I have new paper and Stata commands, to estimate & predict treatment-effect heterogeneity in multi-site RCTs! papers.ssrn.com/sol3/papers.... Estimators computed by multisite_varITT multisite_regITT and multisite_varLATE Stata packages, available from SSC.

@Antoinedeeb.bsky.social and I have new paper and Stata commands, to estimate & predict treatment-effect heterogeneity in multi-site RCTs! papers.ssrn.com/sol3/papers.... Estimators computed by multisite_varITT multisite_regITT and multisite_varLATE Stata packages, available from SSC.

I have a project where one of @cdechaisemartin.bsky.social 's papers is relevant. He has slides posted which were very helpful in understanding what is going on etc. I like this convention and hope others adopt it. Not sure what is says about me that i find slides easier to digest than a paper...

I teach a course where students pick a construct and develop a questionnaire. Last year, a group chose "precrastination." They were the 1st to hand in their assignment. This year, a group chose "dysfunctional conscientiousness." I just received their final report, >1 week before the deadline 😭

Homelessness can be eliminated! Finland shows how. “Housing first”, in an approach integrated with financial assistance and targeted support, works! https://oecdecoscope.blog/2021/12/13/finlands-zero-homeless-strategy-lessons-from-a-success-story/ /ht @brenttoderian.bsky.social

Finland’s Zero Homeless Strategy: Lessons from a Success Story

By Laurence Boone, Boris Cournède, OECD Economics Department; and Marissa Plouin, OECD Directorate for Employment, Labour and Social Affairs  Following a period when homele…

oecdecoscope.blog

Our political economy of field experiments study has just been released by the @nberpubs.bsky.social! Written with @gubri.bsky.social, who is brilliant and on the market this year!

NBER@nber.org · 2y ago

How policymakers and the US population update their beliefs on the use of science and the trust they have in government following a field experiment that demonstrated the ineffectiveness of a policy intervention, from Guglielmo Briscese and John A. List https://www.nber.org/papers/w33239

Inflation doesn’t just hurt wallets—it shifts votes. New research by Jonathan Federle, @cathrinmohr.bsky.social, and @schularick.bsky.social finds that "inflation surprises" boost support for extremist, populist parties. Let’s unpack these findings. 🧵 #EconSky @kielinstitute.bsky.social 1/10