Bea G. Osma

Beatriz García Osma. Universidad Carlos III de Madrid, ECGI.

[Pedro H. C. Sant'Anna @pedrohcgs]

Our paper “Difference-in-Differences Designs: A Practitioner’s Guide” is now published in the Journal of Economic Literature. It took us a while but we are happy!

We put together a lot of material to make the paper useful in practice: https://t.co/30TbAgihlz

Hope you like!

[John B. Holbein @JohnHolbein1]

"We show that, depending on how the impact of omitted variables is measured, it can be substantially easier for omitted variables to flip coefficient signs than to drive them to zero."

[AEA Journals @AEAjournals]

Forthcoming in the AER: "Ideological Alignment and Evidence-Based Policy Adoption" by Jorge García-Hombrados, Marcel Jansen, Angel Martínez, Berkay Özcan, Pedro Rey-Biel, and Antonio Roldán-Monés. https://t.co/mAB4YzVFRd

[Bea G. Osma @beagosma]

Also, also, always wanted to launch the Journal of Insignificant Results in Accounting & Finance (JIRAF, please do say it out loud).

[John B. Holbein @JohnHolbein1]

Contrary to popular belief, writing null effects papers is tremendously fun

[John B. Holbein @JohnHolbein1]

Contrary to popular belief, writing null effects papers is tremendously fun

[I4R @I4Replication]

🧵1/ Our first meta-science paper (with 350+ coauthors) is published today in Nature. It presents one of the largest-ever reproducibility projects in economics & political science.

Here’s what we found 👇

[FundaciónRamónAreces @FundacionAreces]

⚡️ #DeepLearning e #InteligenciaArtificial Causal en #Economia y #Finanzas

Reserva tu plaza para el nuevo seminario que la #frAreces y el @iesebschool organizan del 2 al 5 de junio en #Madrid 📍

Preinscripción abierta hasta el 27 de marzo 📩 https://t.co/VK7ZKqSApt

[Mircea Epure @mircea_epure]

📣Deadline approaching! 5 days to submit your paper for the @bse_barcelona #Entrepreneurship Summer Forum workshop.

Submit by Feb 28th! ⏰👇

[James Ahabyona @a_ha256]

The Max Planck Institute for Behavioral Economics and the University of Cologne invite applications for fully funded PhD positions in Economics starting October 2026.

Deadline: March 15, 2026

Read more here: https://t.co/Q1vT8hj0o0

[pablo @pablogguz_]

where do phd economists end up after graduation?

i built a dataset covering 8,000+ individual placements from 40 top econ departments worldwide spanning up to 30+ years

explore it all with a new interactive visualization tool. free and open!

👉 https://t.co/2n7ef2VwA3

[MACAM UAM @MacamUam]

Ya puedes solicitar MACAM, máster de @UAM_Madrid-@UAHes , impartido sobre todo en @UAM_Economicas. Solicítalo rápido para no quedarte sin plaza!https://t.co/J5ucwQ1rOl
1er plazo: del 4 de febrero al 8 de abril de 2026
2º plazo: del 18 de junio al 1 de septiembre de 2026

[Bea G. Osma @beagosma]

@EuropeanPan In Spain, we say: where there’s room (to feed or host) X, there’s room for X+1. This applies to any natural number ☺️.

[Ministerio de Ciencia, Innovación y Universidades @CienciaGob]

📅 La @AgEInves publica el calendario anual completo de convocatorias 2026.

✅ Por primera vez, ofrecemos una visión completa de la planificación de ayudas de todo el año, con fechas concretas de apertura y enlaces directos.

📎 Toda la información: https://t.co/qEeUPXCGif

[Victor Chernozhukov #peace 🇺🇦 @VC31415]

Yay... after 7 or so years, finally accepter ... at JPE!

[Noah Dasanaike @dasanaike]

In a new working paper, I show that large language models recover ethnicity from names; outperform existing methods; perform well comparatively, using original voter rolls in countries like Armenia and Nepal; and generalize to any classification group.https://t.co/BJffqUDprx

[Agustín Antonetti @agusantonetti]

Esto es hermoso, emocionante.

En pleno centro de Teherán, la capital de Irán, las mujeres se están quitando los velos y los prenden fuego. Todo un símbolo de liberación.

La mayor revolución femenina del siglo XXI está ocurriendo frente a nuestros ojos ahora mismo.

[John B. Holbein @JohnHolbein1]

These authors wanted to know whether mothers face discrimination in hiring, even when they are equally qualified as other applicants.

So they ran two experiments.

First, a lab experiment: participants evaluated pairs of identical job applicants who differed only in parental status.

Then, a real-world audit study: they sent 1,200+ job applications to real employers for entry- and mid-level jobs.

They randomized whether applicants were:
– Mothers (based on serving on the PTA)
– Childless women (they were listed as volunteering in a non-parent specific role)
– Fathers (based on serving on the PTA)
– Childless men (they were listed as volunteering in a non-parent specific role)

All applicants had identical qualifications.

Then they tracked evaluations, salary recommendations, and employer callbacks.

They found that:

Mothers were rated as less competent and less committed than equally qualified childless women.

Mothers were held to stricter standards, offered lower salaries, and were far less likely to be hired or promoted.

In the field experiment, real employers called back childless women at more than twice the rate of mothers.

Fathers, by contrast, faced no penalty and sometimes received a bonus.

Bottom line:
The “motherhood penalty” is real, causal, and driven by discrimination, not differences in ability.

As the authors put it:
“Giving evidence of being a mother leads to discrimination against mothers in hiring and pay.”

[Bea G. Osma @beagosma]

@jfjimenoserrano @miotroblog sobre todo al que lo vende, sí.

[Bea G. Osma @beagosma]

@jfjimenoserrano @miotroblog amortización es en efecto el gasto fundamental (precio, valor residual y vida útil seguramente son distintos), así como otros gastos potencialmente diferentes, como, e.g., seguro anual o coste de plaza de aparcamiento (necesaria para coche eléctrico).