Gábor Békés

@gaborbekes.bsky.social

6.5K followers 2.6K following 2.3K posts

Economics Associate Prof, CEU Vienna.
Trade, applied IO, organisations. sites.google.com/site/bekesg
Author, "Data Analysis for Business, Economics, and Policy" (Cambridge UP) https://gabors-data-analysis.com/
@arsenalfc fan. .. more

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Economics 56%

Business 25%

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Gábor Békés @gaborbekes.bsky.social · Jan 22

Cultural homophily is persistent, pervasive, and consequential, even in superstar multinational teams of high-skill people with common objectives, doing well defined, interactive, not particularly culture intensive tasks.
pubsonline.informs.org/doi/abs/10.1...
Oh, we use football data. #EconSky

Gábor Békés @gaborbekes.bsky.social · 4d

Basically we suggest some other form of comp to devs / maintainers. Like A “Spotify for open source” model—where platforms share subscription revenue with maintainers based on usage.

Gábor Békés @gaborbekes.bsky.social · 4d

when you taught till the evening, it's already 11.20pm CET and you hear about opus 4.6 dropping, you...
(wrong answers, only)

Reposted by Paul Goldsmith-Pinkham, Juan Moreno‐Cruz, Gábor Békés

ArXiv Paperboy (Stat.ME+Econ.EM) @paperposterbot.bsky.social · 10d

arXiv📈🤖
Fast and user-friendly econometrics estimations: The R package fixest
By Berg\'e, Butts, McDermott

fixest is an R package for fast and flexible econometric estimation, providing a comprehensive toolkit for applied researchers. The package particularly excels at fixed-effects estimation, supported by a novel fixed-point acceleration algorithm implemented in C++. This algorithm achieves rapid convergence across a broad class of data contexts and further enables estimation of complex models, including those with varying slopes, in a highly efficient manner. Beyond computational speed, fixest provides a unified syntax for a wide variety of models: ordinary least squares, instrumental variables, generalized linear models, maximum likelihood, and difference-in-differences estimators. An expressive formula interface enables multiple estimations, stepwise regressions, and variable interpolation in a single call, while users can make on-the-fly inference adjustments using a variety of built-in robust standard errors. Finally, fixest provides methods for publication-ready regression tables and coefficient plots. Benchmarks against leading alternatives in R, Python, and Julia demonstrate best-in-class performance, and the paper includes many worked examples illustrating the core functionality.

Gábor Békés @gaborbekes.bsky.social · 10d

i am one with the force and the force is with me

Gábor Békés @gaborbekes.bsky.social · 10d

My first GitHub Action deployed.
Finally, I have grown up.

#age_is_just_a_number

Reposted by Joanna Bryson, Caroline Krafft, Chris Hanretty , and 8 more Joanna Bryson, Caroline Krafft, Chris Hanretty, Joshua Goodman, Paul Goldsmith-Pinkham, Juan Moreno‐Cruz, Noel D. Johnson, Georg Weizsäcker, Gábor Békés, Evan Roberts, Kristina McElheran

Christoph Kronenberg @ckronenberg.bsky.social · 10d

For absolutely no reason, let me remind people of this banger of a paper by @caroartc.bsky.social

doi.org/10.1016/j.jp...

Gábor Békés @gaborbekes.bsky.social · 11d

I also do 90% linkedin. Very few professional debates that i miss most .
Way too much (us) politics here.
But on AI its better.

Gábor Békés @gaborbekes.bsky.social · 12d

Amazing.
I remember when we discovered @duckdb.org and discussed it, maybe @koren.mk or @julianhi.nz said stg like this could be done.
But stunned by speed.

Reposted by Gábor Békés

Gergely Orosz @gergely.pragmaticengineer.com · 12d

No project has gotten more traction in such a short time than Clawd bot (now: Molt bot) by @steipete.me. But how is he building it?

Watch or listen:

• YouTube: www.youtube.com/watch?v=8lF7...

• Spotify: open.spotify.com/episode/5Ie6...

• Apple: podcasts.apple.com/us/podcast/t...

Reposted by Paul Goldsmith-Pinkham, Gábor Békés

Grant McDermott @gmcd.bsky.social · 12d

ICYMI with a quick screenshot as sales pitch. Simply feed your estimation a bunch of .parquet files on disk and run it as normal.

This example takes 180m rows of NYC taxi data and computes the model in < 1 second.

On a laptop.

dbreg example showing how to estimate a model against a large dataset, comprising parquet files on disk. The model takes < 1 to run, including the time needed to read the data from disk.

dbreg(
tip_amount ~ fare_amount + passenger_count | month + vendor_name,
path = "read_parquet('nyc-taxi/**/*.parquet')",
vcov = ~month, # clustered SEs
strategy = "compress" # skip auto strategy overhead
)

Reposted by Gábor Békés

Miklós Koren @koren.mk · 12d

We can debate the magnitude but I don't see how you can say vibe coding does not weaken user engagement. If Claude (etc) selects and imports a library instead of a human user, how is that user engaged with the developer / user community of the library?

Gábor Békés @gaborbekes.bsky.social · 12d

Sure. The first step is this. But the question is: will people still do OSS if noone cares.
A nice write up
www.theregister.com/2026/01/26/v... @koren.mk @julianhinz.bsky.social @aaron-lohmann.bsky.social @carlbergstrom.com

Vibe coding may be hazardous to open source

: Researchers argue AI coding tools disrupt community and hinder returns to maintainers

www.theregister.com

Gábor Békés @gaborbekes.bsky.social · 13d

Some research are genuinely human + ai. Here AI is a tool like google or python. Imho many research will be human supervised ai / almost all ai There some disclaimer should come.

Gábor Békés @gaborbekes.bsky.social · 13d

Great points!
One extra point from a recent paper of ours
arxiv.org/html/2601.15...

Vibe Coding Kills Open SourceWe thank Gergely Orosz, Eduardo Arino de la Rubia and Kevin Xu for helpful comments. This project was funded by the European Research Council (ERC Advanced Grant agreement...

arxiv.org

Reposted by Paul Goldsmith-Pinkham, Gábor Békés, Laurent Bergé

Grant McDermott @gmcd.bsky.social · 14d

Things are grim. But in more frivolous news...

@jamesbrandecon.bsky.social and I have been chipping away at `dbreg`, a 📦 for running big regression models on database backends. For the right kinds of problems, the speed-ups are near magical.

Website: grantmcdermott.com/dbreg/

#rstats

[1/2]

dbreg

grantmcdermott.com

Gábor Békés @gaborbekes.bsky.social · 14d

arxiv.org/html/2601.15...

arxiv.org

Reposted by Gábor Békés

Miklós Koren @koren.mk · 14d

Our paper with @gaborbekes.bsky.social @julianhinz.bsky.social and Aaron Lohmann is/was on top of HN. 15 minutes, I guess.

Reposted by Mathieu Parenti, Gábor Békés, Meredith A. Crowley

Lionel Fontagné @lionel-fontagne.bsky.social · 14d

The PSE Trade Summer School 2026 will focus on Trade Policy and will feature @meredith-crowley.bsky.social @julianhi.nz @mathieupar.bsky.social Roberta Piermartini and myself. www.parisschoolofeconomics.eu/en/summer-sc...

HTTPSwww.parisschoolofeconomics.eu

Reposted by Gábor Békés

Margo Gontar @margogontar.bsky.social · 16d

This night Russia bombed a chocolate factory in Kyiv. A chocolate factory . During so called ‘peace talks’, Russia bombed a place where Ukrainians make cakes and chocolate bars.

The. Fck

Gábor Békés @gaborbekes.bsky.social · 16d

I agree. Bc Trump is not alone. But supported by establishment. Even if Ds won in 3ys (which after 16ys w Orbán im not sure) vance etc will come back.
So carney is right. No turn back in next decade.

Reposted by Gábor Békés

Miklós Koren @koren.mk · 16d

It’s not click bait if it’s true.

The only condition needed is that ai-assisted usage and direct usage of the *same* software package are closer substitutes than different packages. We are sure this holds (though plan to do more data work to confirm), that’s why we opted for the strong title.

Gábor Békés @gaborbekes.bsky.social · 16d

You already internalized our policy recommendation. Nice.

Gábor Békés @gaborbekes.bsky.social · 16d

Hi sure its uhum strong
But fairly plausuble and generic conditions id say. @koren.mk

Reposted by Florian Altermatt, Dean Eckles, Miklós Koren

Gábor Békés @gaborbekes.bsky.social · 17d

Vibe coding kills open source.
Our most direct title yet. @koren.mk @julianhi.nz @aaron-lohmann.bsky.social
Theory paper with numbers and policy recs. First at arxiv.org/abs/2601.15494
Comments welcome.

@ceu-economics.bsky.social @kiel.institute

Gábor Békés @gaborbekes.bsky.social · 26d

In December, @ceu-economics.bsky.social hosted the 2nd Vienna Data Analytics Jamboree, organized with Vienna Data Science Group (VDSG). 150 participants ranging from industry leaders, CEU faculty, students and alumni, and more. Nice write up.
www.ceu.edu/news/2026-01...

Reposted by Wolfgang Huber, Gábor Békés

useR! - The R User Conference @user-conf.bsky.social · Jan 10

We are honored to announce Dariia Mykhailyshyna (@dariia.bsky.social) as a Keynote for useR! 2026 in Warsaw!

A postdoctoral researcher at the Kyiv School of Economics and a recent PhD graduate from the University of Bologna, Dariia has been an avid R user for seven years.
user2026.r-project.org

$A poster for the "USER! 2026 CONFERENCE WARSAW," which is scheduled for "6th-9th JULY 2026" at "WARSAW SCHOOL OF ECONOMICS & ONLINE." The poster announces "Keynote Speaker Dariia Mykhailyshyna." On the right is a photo of Dariia Mykhailyshyna, a woman with brown hair wearing glasses and a white t-shirt with "KYIV" text and an illustration of a building. Below the conference details are four colored squares (blue, yellow, orange, purple) showing a progression of a fractal geometric pattern, starting from a single square.$

Reposted by Gábor Békés

Gergely Orosz @gergely.pragmaticengineer.com · Jan 4

One thing every tech company is doing but few share with anyone:

evaluating AI tools for devs - for coding, for infra (eg gateway), for code review etc. Tons of vendors, unclear which one to buy.

Share what you / your team found, and I'll share what others are seeing and what they measure (cont'd)

Gábor Békés @gaborbekes.bsky.social · Jan 4

Yes clear event study time design is super key.

I recall @koren.mk found some issues for stata re base time
koren.dev/software/

Software

Lorem ipsum dolorem

koren.dev

Reposted by Gábor Békés

Alex @s3alfisc.bsky.social · Jan 4

I've been wondering if pyfixest syntax is ideal for the new DiD estimators - what moderndid does seems to make very good sense to me - first there is a model class call, and then users can specify aggregation levels of ATTs. This is more or less the same API that the R did package uses:

Gábor Békés @gaborbekes.bsky.social · Jan 4

I just learned the term #FAFO.
It's legit in international context, ok. But can I use it in college classrooms?

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