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Posts by Martin Foureaux Koppensteiner

Hi Alex, great I found you here.

4 days ago 1 0 0 0
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This is exactly what our research shows: when it becomes harder to tell apart expert-looking content from the real thing, the value of expertise goes up. And so does demand for it…

giftarticle.ft.com/giftarticle/... AI hallucinations haunt users more than job losses

1 month ago 199 68 4 5
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Working Papers WORKING PAPER N.º01 - Powerful Forests: The Welfare Implications of Deforestation for the Power Sector Authors: Rafael Araujo, Francisco Costa, Vinícius Hector, Marcelo Sant'Anna

Bottom line: conservation and renewable energy policies are complementary. The Amazon is not only a carbon sink — it is infrastructure.

📄 Paper: en.redepps.org/publications...

📘 Policy brief: en.redepps.org/publications...

Joint work with Rafael Araújo, Marcelo Sant'Anna, and Vinícius Hector.

1 month ago 4 1 0 0
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This new QJE paper concludes that the macroeconomic costs of climate change are far greater than earlier estimates suggested. It finds that a 1°C rise in global temperatures reduces world GDP by over 20%.

1 month ago 53 30 3 4
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Doctoral researcher, ENERPOL MSCA Doctoral Network Doctoral researcher, ENERPOL MSCA Doctoral Network

I am looking for a PhD student in energy economics starting in the fall, focusing on household-level energy use and energy poverty.

More info: jobs.helsinki.fi/job/Helsinki...

2 months ago 16 21 0 1
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Após mais de 2.558 dias do rompimento da barragem da Vale em Brumadinho, que matou 272 pessoas, o Corpo de Bombeiros de Minas Gerais encerrou as buscas pelas vítimas. Sete anos depois, a maior parte da lama tóxica permanece no ambiente e ninguém foi julgado pelo desastre.

2 months ago 32 11 1 1

Hi lovely #econsky people!

📢 Call for Papers: YEM2026 – Young Economists’ Meeting, Brno (yem.econ.muni.cz).
Submit full papers or extended abstracts by Feb 28 for the conference on May 27–29, Brno, Czech Republic.

We can’t wait to see you there!

#YEM2026

3 months ago 2 1 0 0
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new vox dev piece on our recent RCT to counter misinformation in classrooms in india:

3 months ago 17 7 1 0
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[OC] Brazil National Congress - Oscar Niemeyer r/brutalism

4 months ago 65 8 3 3
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(S+) COP30 in Belém: Wie Friedrich Merz die Brasilianer erzürnt Bundeskanzler Merz leistet sich einen Spruch auf Kosten der Gastgeber der Weltklimakonferenz in Belém. Der rhetorische Ausfall bringt die deutsche Delegation vor Ort in Erklärungsnot – und gefährdet d...

Der Belém-Spruch von Friedrich Merz war herablassend und billig, und sagt mehr über ihn aus als Belém. Damit schädigt Merz nicht nur dem Ansehen Deutschlands, sondern auch den Bemühungen bei der Weltklimakonferenz. 🇧🇷 #Merz #Belém www.spiegel.de/wissenschaft...

5 months ago 2 0 0 0

Fantastic opportunity for economics students to get first hand experience from summer placements at the IFS, the UK's leading independent research institute.

5 months ago 1 0 0 0
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The impact of AI on workers depends critically on whether the AI-seller has market power. A monopoly seller of AI services causes significant harm to an economy, from Susan Athey and Fiona Scott Morton www.nber.org/papers/w34444

5 months ago 15 4 1 1
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🆕Working Paper🚨

Training or Retiring? How Labor Markets Adjust to Trade and Technology Shocks📒
w/ A.Bertermann, @dauthecon.bsky.social & @suedekum.bsky.social

🤖 Robots ➡️ ⬆️training & ⬆️early retirement
🌏 Imports ➡️ ⬇️training & ⬆️early r.
🌎 Exports ➡️ ⬆️training & ⬇️e.r.

www.ifo.de/DocDL/cesifo...

🧵1/9

5 months ago 30 13 1 1
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The aggressive immigration raids we now see across the nation began 10 months ago in California's Central Valley. Their impact on children, families, and communities is an important & active area of research

I'm pleased my study of the initial raid's early impact on students is now out in @pnas.org

5 months ago 28 15 1 2
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‘What does it mean? No one knows’: six-seven meme invades UK classrooms Four out of five secondary school teachers surveyed say they have heard perplexing viral phrase called out

Hmm, I also don't know what it means, but I know how to make your kids stop using it at home, fellow parents. Adopt it and let it slip casually into conversations with your kids.😉 www.theguardian.com/education/20...

5 months ago 3 0 0 0

It might be hard to convey to people outside economics just how seismic this is. The Trump effect has most certainly arrived to US academia.

6 months ago 451 136 9 10
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Real change in public expenditures on higher education, 2008 to 2023, selected countries that actually publish the damn data. UK is worst here, but note this does not include RAB (projected future loan forgiveness, basically). If RAB is included...UK would still be last.

6 months ago 17 9 2 0
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Opinion | Brazil Just Succeeded Where the U.S. Failed

My opinion about the historic verdict coming out of Brazil, with @stevelevitsky.bsky.social, is in the @nytimes.com today.

www.nytimes.com/2025/09/12/o...

7 months ago 237 69 7 4
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Brazil's Bolsonaro guilty of coup charges, court majority decides in landmark trial Former Brazilian president Jair Bolsonaro was convicted by a Supreme Court majority on Thursday of plotting a coup to remain in power after losing the 2022 election, a powerful blow to the populist far-right movement he created.

Brazil's Bolsonaro guilty of coup charges, court majority decides in landmark trial www.reuters.com/world/americ...

7 months ago 6 1 0 0

Congrats Nadine, very important and timely work!

7 months ago 1 0 0 0

A big thank-you to my colleagues at FJP for their outstanding work in organizing this series and driving the conversation on using evidence to shape better public policies

7 months ago 0 0 0 0

This lecture marked the kick-off of a series of events on evidence-informed policymaking, funded by the British Academy and developed in partnership with the João Pinheiro Foundation.

7 months ago 0 0 1 0
Picture of attendants at lecture at FJP.

Picture of attendants at lecture at FJP.

Yesterday, I had the privilege of delivering a lecture to the State Minister of Planning of Minas Gerais, Brazil. We discussed key lessons from the UK’s system of policy evaluations and how these insights can help strengthen evaluation practices in Brazil.

7 months ago 2 0 1 0
SOLE 2026 Submissions Open

Society of Labor Economists (SoLE) Annual Conference will be May 1-2, 2026 in Denver, Colorado. Submission portal is now open! Deadline for submissions is October 31--don't forget to submit! It will be a great conference! (organized by me and @jrothst.bsky.social)

mailchi.mp/sole-jole/so...

8 months ago 69 38 0 9
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Trump signs order increasing Brazil tariff to 50 percent President Trump on Wednesday signed an executive order raising tariffs on imports from Brazil to 50 percent, escalating his fight with the largest South American economy. The order Trump signed dec…

Trump does shit every day that should get him impeached. But illegally punishing an entire country — and any Americans who use products or do businesses with anyone in Brazil — because it’s prosecuting its former president for attempting a violent coup is among the worst things he has done.

8 months ago 798 252 17 12
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Using time series graphs to make causal claims be like

9 months ago 850 161 11 7
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Paid internship on The Economist’s Britain desk An opportunity to write for The Economist

We are hiring for a paid six-month internship on The Economist’s Britain desk. Please share!
economist.com/britain/2025...

9 months ago 2 6 0 0

I left Ireland and moved to New York in 1997. Decades on, what the US has become has broken my immigrant heart.

It also baffled me, until I began to piece together Gen X memories of apartheid South Africa.

9 months ago 284 87 6 42