🧵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....

Are you a PhD student or Postdoc working on topics in Empirical Economics? Please apply to our 9th Potsdam PhD Workshop 👇 ⏰ Deadline to apply: June 30, 2025.

If you - work on #gender inequality in the labor market - want to finally understand what this never-ending #DiD literature is talking about - teach recent advances in DiD then take a look at our WP with Lukas Riedel! #EconSky @rfberlin.bsky.social www.rfberlin.com/research/chi...

📢 We are looking for a postdoctoral researcher at the Institute for Employment Research (@iabnews.bsky.social) for our research project on the gig economy! #EconSky Link: econjobmarket.org/positions/11... start date: October 2025 Some German knowledge is required.

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 Now you can tell your friends still on X that they are DID-outdated :-) Happy easter for those of you that celebrate it.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....

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.

I really liked this idea of using a histogram as a legend in a choropleth map (since land isn't unemployed; people are), so I made a little guide to doing it with #rstats, {ggplot2}, and {patchwork} www.andrewheiss.com/blog/2025/02...

@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.

Our practical guide to shift-share IV is now out in the JEP! www.aeaweb.org/issues/793 (Ungated version: www.dropbox.com/scl/fi/el9yn...)

I put together an overview of recent developments in the literature on gender-based violence for @AEAjournals There's enough material for 2x 1.5hr lectures. I've covered the material in labor & gender economics classes I hope they can be helpful! www.dropbox.com/scl/fi/ea7v9...

Recently accepted by #QJE, “The Impact of Being Denied a Wanted Abortion on Women and their Children,” by Londoño-Vélez (@jlondonovelez.bsky.social) and Saravia: doi.org/10.1093/qje/...

"The whole field of economics, or what used to be called political economy, was really founded by people who thought they should be telling other people what to do." This recent talk by Nobel laureate David Card at @rfberlin.bsky.social, on Immigration and Minimum Wages, is magisterial.

I've decided to collect my DiD materials in a single place. psantanna.com/did-resources There, you will find - 14 lectures of my comprehensive DiD course - Shorter lectures/talks I have given on DiD - My DiD R/Stata/Python packages - Some DiD checklists - DiD materials from my friends Enjoy!

Here are the first five sets of slides: 01 Introduction: psantanna.com/DiD/01_Intro... 02 Classical 2x2 setup: psantanna.com/DiD/02_two_b... 03 Clustering issues: psantanna.com/DiD/03_Clust... 04 Functional form: psantanna.com/DiD/04_Funct... 05 Covariates: psantanna.com/DiD/05_Covar...

📢 #CallForPapers @cepr.org and RFBerlin invite submissions for the RFBerlin-CEPR Annual #Symposium in #Labour Economics. Keynotes by: John Friedman (Brown U. & Opportunity Insights) and Heather Sarsons (UBC Economics & CEPR). 📆 Deadline: 31 Jan 2025 More details & submit here: ow.ly/wZGK50U923u

📢We are hiring 📢 We look to fill a Postdoc position in Economic History! 5-year position funded by ERC project „Entrenched: Elite Capture and Social Mobility“ jobportal.uni-koeln.de/bewerben/1964 Deadline: Jan 17, 2025 Please spread widely! @econtribute.bsky.social #EconSky

If you are working on economics of aging, take a look at the upcoming conference at #RFBerlin!

Economists love using linear regression to estimate treatment effects — it turns out that there are perils to this method, but also amazing perks Come with me in this 🧵 if you want to learn about our now-published paper "Contamination Bias in Linear Regressions!" 1/ (Twitter rerun!)

We've created a starter pack for all of the economics journals on Bluesky. Please nominate other journals to join the list. go.bsky.app/4kR21vX

Ok guys here's the point. Diff in Diff is a model based assumption that identifies the ATT (unless you're using random timing of rollouts, but almost noone is). It is model-based because you make assumptions to identify the OUTCOME MODEL in the *absence* of the treatment. 1/

Hi #EconSky, Not sure if the Starter Pack party's over, but I've made an Econ Starter Pack of Starter Packs! 😄 It's a work in progress, so I may have missed some. Let me know if there's anything to add—DMs are open! Thanks for support @economista.bsky.social! docs.google.com/spreadsheets...

I'm trying to compete with @stephenjwild.bsky.social's DAG People starter pack, because economists believe in competition Open to suggestions! go.bsky.app/Fa2XSDH

Okay, the first Women in Econ starter pack was such a success that we quickly hit the BlueSky starter pack limit (150 accounts). But, I've got a version 2.0 with even more awesome economists you should follow! go.bsky.app/J6nhkk7

Regression is a tool for making comparisons If you don't know / can't easily explain what comparisons you're trying to make, then you don't understand the regression you're running

I started a starter pack of economists working on gender. It's sparsely populated, so please point out people I've missed. go.bsky.app/P6kvUEe

🔔 We are hiring 🔔 The ROCKWOOL Foundation Berlin is hiring Postdoctoral Fellows in Applied/Labor Economics! Full-time position, based in Berlin, two-year contract with the potential for extension. Apply now or share with your network! www.rfberlin.com/job/postdoct...

@instrumenthull.bsky.social and I are organizing econometrics workshop this Thursday at #EEA-ESEM, join us in Zaal Sorbonne (M2-03), at 11am (talks by Gonzalo Vazquez-Bare, Zheng Wang, Davide Viviano, Soonwoo Kwon) & 4pm (Stefan Pollinger, Ashesh Rambachan, Valentina Melentyeva, Christophe Gaillac)!