Joschka Wanner

The US is playing countries off against each other. A coalition of the 🇪🇺,🇨🇦,🇲🇽,🇧🇷 & 🇰🇷 could put real pressure on Washington with a joint response. They would have strong leverage against tariffs. Read more in the new KPB 👉 ifw-kiel.de/publications...
@julianhi.nz @schularick.bsky.social

📢 Kiel-@cepr.org-Research Seminar. Christoph Böhm @utaustinecon.bsky.social presents joint work w/ @nityanayar.bsky.social on dynamic gains from trade. Both are currently in Kiel teaching in the ASP program!
Don’t miss future talks - register here for the series 👉 www.ifw-kiel.de/institute/ev...

A new dynamic multi-country Ricardian trade model with aggregate uncertainty, where countries trade goods and assets, leading to endogenous trade imbalances following tariff shocks, from Lorenzo Caliendo, Samuel S. Kortum, and Fernando Parro https://www.nber.org/papers/w34003

Our paper is officially out 🎉

We argue that climate clubs show promise:

- A climate club with coordinated penalties could curb 68% of excess emissions from free-riding

-Unilateral carbon tariffs? Not nearly as effective

DIW Berlin: Clean Production, Dirty Sourcing: How Embodied Emissions Alter the Environmental Footprint of Exporters This paper revisits the exporter’s environmental premium (EEP) by incorporating emissions embodied in domestically and internationally sourced intermediate inputs. Combining administrative firm-level ...

New WP:
"𝘾𝙡𝙚𝙖𝙣 𝙋𝙧𝙤𝙙𝙪𝙘𝙩𝙞𝙤𝙣, 𝘿𝙞𝙧𝙩𝙮 𝙎𝙤𝙪𝙧𝙘𝙞𝙣𝙜: 𝙃𝙤𝙬 𝙀𝙢𝙗𝙤𝙙𝙞𝙚𝙙 𝙀𝙢𝙞𝙨𝙨𝙞𝙤𝙣𝙨 𝘼𝙡𝙩𝙚𝙧 𝙩𝙝𝙚 𝙀𝙣𝙫𝙞𝙧𝙤𝙣𝙢𝙚𝙣𝙩𝙖𝙡 𝙁𝙤𝙤𝙩𝙥𝙧𝙞𝙣𝙩 𝙤𝙛 𝙀𝙭𝙥𝙤𝙧𝙩𝙚𝙧𝙨"
📄 www.diw.de/de/diw_01.c....
👥 Till Köveker, Philipp Richter and Alexander Schiersch

🧵

We study how trade policy can reduce global emissions. Unilateral carbon border taxes have limited efficacy at cutting foreign emissions. By contrast, coordinated trade penalties under a climate club prove highly effective. buff.ly/NEE3Uy8

The CEP/LSE/Warwick Junior Trade Workshop is back on Sept 22! Accepts papers from PhD students and postdocs on the job market in Jan 2026. Submit by July 27 at juniortradeworkshop@gmail.com. It's an excellent chance to get feedback towards the market and it's funded!

cep.lse.ac.uk/_new/events/...

📌📆 We are thrilled that Ludger Wößmann (@woessmann.bsky.social) from @ifoeducation.bsky.social & @lmumuenchen.bsky.social will deliver this year’s IEP Lecture @uni-wuerzburg.de!

Join us on 07 July! Further info 👇🏽

www.uni-wuerzburg.de/aktuelles/ei...

Call for papers

The CEP/LSE – Warwick Junior Trade Workshop will bring together PhD students in the field of international economics for job market paper presentations and discussions. @warwickecon.bsky.social @cep-lse.bsky.social

Submit papers by 27 July.

More ➡️ cep.lse.ac.uk/_new/events/...

📢NEW DATA! Happy to share the new release of the International Trade and Production Database for Estimation - ITPD-E-R03. Thanks to my co-authors Mario Larch & Serge Shikher and to the USITC!

For details: ideas.repec.org/p/drx/wpaper...

Enjoy the data and have a great summer!

Die geplante Finanzierung der #Gasspeicherumlage aus dem #KTF (TSP Background) entspricht einer Senkung des effektiven CO2-Preises auf Gas um 16 Euro. Größte Ironie: mit Einnahmen aus CO2-Preis bzw. dem Sondervermögen (das in den KTF fließen soll) wird nun fossile Energie subventioniert.

(Foto: Thawatchai Images / Adobe Stock)

Es ist eine Premiere: Demnächst nimmt der Würzburger #Zukunftsrat die Arbeit auf. Initiiert hat das Projekt die JMU-Professorin Ulrike Zeigermann. Thema des 1. Würzburger Bürgerrats ist: „Gerechtigkeit in der #Mobilität“. #Würzburg ➡️ www.uni-wuerzburg.de/aktuelles/ei...

Very happy that so many @pik-potsdam.bsky.social colleagues made it to Bergen #eaere2025 this year @eaere.bsky.social.

Today in the Carbon leakage egg timer session, Timothé Beaufils will present our WP „The potential of carbon border adjustments to foster climate cooperation“, joint work with @joschkawanner.bsky.social

New Paper Alert!📢
"Making America Great Again? The Economic Impacts of Liberation Day Tariffs"👨‍🦰
by Anna Ignatenko @lashkaripour.bsky.social‬ Luca Macedoni @simonovska.bsky.social‬

This model estimates U.S. welfare and global employment under optimal tariff retaliation📉:
www.ifo.de/en/cesifo/pu...

PhD position at the intersection of international trade, environmental economics, and labor economics at the University of Göttingen, with the wonderful Lei Li.

Recommended! #EconSky

www.uni-goettingen.de/de/644546.ht...

Here you will find a press release: go.uniwue.de/wanner-sanct...

Very happy to see my joint paper with Lisa Scheckenhofer and @feodorateti.bsky.social on sanction evasion for military goods published in this year's AEA P&P: www.aeaweb.org/articles?id=...

AEA Papers and Proceedings Vol. 115 May 2025

The May 2025 issue of AEA Papers and Proceedings (115) is now available online at aeaweb.org/issues/804.

Award Winner

Group picture

Fernando Parro

Participants

Thanks everyone for attending the 2025 #𝗖𝗘𝗦𝗶𝗳𝗼 𝗔𝗿𝗲𝗮 𝗖𝗼𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝗼𝗻 𝗚𝗹𝗼𝗯𝗮𝗹 𝗘𝗰𝗼𝗻𝗼𝗺𝘆! Great keynote presentations by Fernando Parro (@urochester.bsky.social) and Lorenzo Caliendo, Yale.
👏Oscar Perello, UCL, won the CESifo/Review of International Economics Affiliate Award. Congratulations!

…and the rest of the workshop didn’t disappoint either - great keynote, two more paper presentations, many conversations, sharp minds, and plenty of inspiration! Thanks to all speakers and participants 👏!
@cepr.org @schularick.bsky.social @julianhi.nz @joschkawanner.bsky.social

📢Here it is! The Call for Papers is out for the 4th Kiel-CEPR Conference on Geoeconomics! Join @pantras.bsky.social, Ken Rogoff, Silvana Tenreyro + @nityanayar.bsky.social, @ikuziemko.bsky.social & more in Paris more in Paris to present your geoeconomics research 👉 ifw-kiel.de/institute/ev...

Publication alert! 🚨

10 years in the making!

Main takeaways:
💡 A stricter environmental policy unambiguously reduces economic growth
💡 But the effect is highly non-linear
💡 Economic growth barely affected by realistic environmental policy changes

doi.org/10.1016/j.en...

In weißer Schrift auf orangefarbenem Hintergrund steht: „DJV fordert“. Darunter steht in orangefarbener Schrift auf weißem Hintergrund: „Umgang der Medien mit AfD muss sich ändern“. Im Hintergrund ist ein Zeitungsstapel mit orangefarbenen Schatten abgebildet. Fotoquelle: canva.com/billion-images.

Das Bundesamt für #Verfassungsschutz stuft die AfD als gesichert #rechtsextremistisch ein. DJV-Bundesvorsitzende @mikabeuster.bsky.social: "Beiträge der AfD dürfen in politischen Debatten nicht unkommentiert neben jene von demokratischen Parteien gestellt werden".

Mehr👉 www.djv.de/news/pressem...

Carbon border adjustment mechanism policies reduce emissions leakage, boost domestic competitiveness and encourage global carbon pricing — without disproportionately harming lower-income countries from @kclausing.bsky.social, Colmer, Hsiao and @cwolfram.bsky.social https://www.nber.org/papers/w33723

Wir freuen uns auf deinen Besuch und Vortrag!

Important indeed!
Timothé Beaufils, @leoniewenz.bsky.social and I investigate exactly this strategic dimension of the CBAM in our joint work: www.cesifo.org/en/publicati...

Yes, the US Administration’s illegal obliteration of our Congressionally-mandated aid agency has killed countless people.

Now you know the name of one.

🚨 GRAVITY for UNDERGRADS🚨

Very happy to share “Gravity for Undergrads” - a Chapter, designed to introduce the gravity model to undergrads and novices in trade. It comes with data and code in Stata & R. I hope it is useful. Gravity rules 💪

yotoyotov.com/Gravity_Unde...

Please note that the information scribbled on this page by the White House has been shown to be false numerous times.