Mathieu Parenti

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...

Mercosur et pesticides : la réponse en trompe-l’œil de la Commission européenne Pour répondre aux craintes des agriculteurs et des écologistes, la Commission propose un durcissement des contrôles sur les résidus de pesticides dans les produits importés via le Mercosur. Une straté...

www.liberation.fr/idees-et-deb...

Notre tribune avec @carlgaigne.bsky.social 👇

Absolutely amazing public good by @eugeniedugoua.bsky.social and J. Moscona

La Lettre du CEPII "Taxer les #multinationales à l’ère du retour de l’unilatéralisme" de @aferrari.bsky.social, Sébastien Laffite, @mathieupar.bsky.social, Farid Toubal.
www.cepii.fr/CEPII/fr/pub....
#econsky #evitementfiscal #taxation

🧵 (1/4) There are four fundamental flaws of the House tax bill.

#1 It is fiscally irresponsible; all reputable sources agree. Bond markets & downgrades show US financial fragility; this is a bad time to take on trillions in additional debt toward no useful policy rationale.

@inrae-france.bsky.social @pse.bsky.social @cercleeco.bsky.social @taxobservatory.bsky.social @i-mip.bsky.social

Many congratulations to @abergeaud.bsky.social !

Deeply honored to be nominated alongside with @adrienbilal.bsky.social and Lauriane Mouysset and very grateful to my amazing coauthors.

@cercleeco.bsky.social

t.co/zEs9LRCX2e

A macroeconomic analysis of import tariffs - Paris School of Economics The International Macroeconomics Chair and the i-MIP have the pleasure to invite you to a lecture given by Oleg Itskhoki (Harvard University).

The Paris School of Economics is glad to invite you to a lecture by Oleg Itskhoki (@harvard.edu) organized by the International Macroeconomics Chair and @i-mip.bsky.social.
📆 Thursday, May 15
📍 Paris School of Economics
📝 framaforms.org/internationa...
👉 www.parisschoolofeconomics.eu/en/events/a-...

L’Observatoire européen de la fiscalité imagine une « taxe pesticides » aux frontières Le cercle de réflexion suggère de tenir compte de l’intensité d’usage des produits phytosanitaires dans la taxation des importations agricoles. Un moyen d’éviter les distorsions de concurrence tant dé...

www.lemonde.fr/planete/arti...

Thanks Ludovic! Below is a first breakdown of the pesticides embedded in EU consumption/imports. Some of those forbidden substances are produced in Europe, see www.lemonde.fr/planete/arti...
Tracking the whole chain is on the todo list!

6/ The full policy note presents estimates of appropriate border tax calibrations based on a quantitative trade model: www.taxobservatory.eu/publication/...

5/ We evaluate two policy instruments with distinct WTO compatibility considerations: (1) a Leakage Border Adjustment Mechanism designed to neutralize competitive distortions, and (2) a Phytosanitary Border Adjustment Mechanism which prices pesticide externalities in imports.

Here is a first estimate of the toxicity-weighted phytosanitary footprint of EU consumption

4/ We introduce the "phytosanitary footprint" metric to quantify the aggregate pesticide load in agricultural production. This methodology enables assessment of transboundary environmental impacts embedded in trade flows, similar to carbon footprint accounting.

3/ Quantitative modeling demonstrates that implementing a unilateral 50% pesticide reduction policy (e.g., Farm-to-fork) without complementary measures would significantly impair EU agricultural competitiveness while facilitating production displacement to regions with less stringent standards.

2/ Without safeguards, stricter EU regulations not only fail to achieve global environmental goals but actively tilt the playing field against EU farmers.

1/ NEW RESEARCH: Our study reveals 46% of pesticides embedded in EU agricultural consumption originate from imports, despite imports constituting only 17% of consumption. This includes substances prohibited in the EU. This regulatory gap fuels leakage effects and hurts EU competitiveness 🧵

@hfadinger.bsky.social

4/ Key to understanding this issue is the "phytosanitary footprint" - similar to a carbon footprint, it measures the total pesticide load used (directly & indirectly) in producing agricultural goods. It reveals environmental impacts that cross borders through trade 👇

1/ 🚨 NEW: 46% of the pesticides embedded in EU agricultural consumption come from imports—despite imports making up just 17% of total consumption. Many of these include substances banned in the EU 🇪🇺

This regulatory gap fuels leakage effects and hurts EU competitiveness 🧵👇

Cela semble absurde, et j’ai été choqué la première fois que je l’ai compris, mais la France – il n'y a pas d'autre mot – est bien un paradis fiscal pour milliardaire

Explications détaillées 🧵

Chinese e-commerce in spotlight as EU targets flood of small packages Brussels is seeking to scrap tax breaks for low-value shipments as it cracks down on ‘dangerous’ goods sold by firms such as Temu and Shein.

EU looks to end de minimis rule under flood of small packages from China's Temu and Shein

My report from this morning's announcement in Brussels

www.scmp.com/news/china/d...

1. A workshop at the intersection of International and Public Economics
2. Teresa Fort and @mathieupar.bsky.social as keynote
3. @jakobmiethe.bsky.social and Juan Carlos co-organising
4. Venice and the amazing ifo Staff coordinating everything

What else?

Submission Deadline is February 9!

Venice Summer Institute 2025: The Regulation of Multi-Firm Groups: Combining Advances from Trade and Public Economics Organizers: Martina Magli, Jakob Miethe, and Juan Carlos SuarézThis workshop explores the role of pivotal multi-firm groups in shaping global trade, taxation, and regulation. Bridging research in trad...

📣 CfP: Workshop on 𝗧𝗵𝗲 𝗥𝗲𝗴𝘂𝗹𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗠𝘂𝗹𝘁𝗶-𝗙𝗶𝗿𝗺 𝗚𝗿𝗼𝘂𝗽𝘀
📍 𝟮𝟰-𝟮𝟱 𝗝𝘂𝗻𝗲 𝟮𝟬𝟮𝟱 𝗶𝗻 𝗩𝗲𝗻𝗶𝗰𝗲, Italy.
Keynotes: Teresa Fort (Dartmouth) & @mathieupar.bsky.social
Organizers: @martinamagli.bsky.social, @jakobmiethe.bsky.social, Juan Carlos Suaréz

Submit until 𝟵 𝗙𝗲𝗯𝗿𝘂𝗮𝗿𝘆 𝟮𝟬𝟮𝟱 👇
www.cesifo.org/en/event/202...

Here is the handbook I was missing as a PhD student! Edited by Dirk Schindler & Arjan Lejour, it includes contributions by more than 40 scholars on all aspects of tax haven research in economics. My chapter "Tax Havens and Illicit Financial Flows"... (1/5)

Volume 135 Issue 666 | The Economic Journal | Oxford Academic The Economic Journal is the Royal Economic Society's flagship title, and is one of the founding journals of modern economics. The journal provides a platform for and imaginative economic research for ...

It's February at The Economic Journal ❤️

Lots of great papers, long (9) and short (2). Enjoy!

academic.oup.com/ej/issue/135...

⚠️ 4 days left to apply to the RIEF PhD meeting on Global Issues in Aix-en-Provence!

Thanks to @cepr.org, Aix-Marseille School of Economics, Cepremap and PSE for making it happen.

Antonin Bergeaud : «Une productivité en berne détruit des emplois» ENTRETIEN - Pour cet économiste spécialisé sur les enjeux d’innovation et de croissance, la priorité est de diffuser les nouvelles technologies dans l’économie.

Interview dans le Figaro @lefigaro.bsky.social de ce samedi sur le décrochage européen

🚨𝗖𝗮𝗹𝗹 𝗳𝗼𝗿 𝗽𝗮𝗽𝗲𝗿𝘀 | 2025 RIEF Doctoral Meetings
March 27-28 in Aix-en-Provence

Global issues related to Trade, Macro, Migration, Taxation, Environment + Urban econ.
tinyurl.com/yz429n93

Deadline: Nov. 30th

➡️ Papers will be assigned a senior discussant

French organizations Carbone 4 + ECF launch this essential report on "imported emissions".

It's essential because a significant part of global emissions are embedded in trade and interdepencies, raising questions about responsibilities and partnerships for climate.

www.carbone4.com/files/Public...