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Mathieu Parenti

@mathieupar.bsky.social

1.7K followers 180 following 18 posts

Paris School of Economics & INRAE Research: corporate taxation, trade agreements, agricultural and environmental econ, market power. https://sites.google.com/site/mathieuparenti/home/

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Mathieu Parenti @mathieupar.bsky.social · Mar 27

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 🧵

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Reposted by Mathieu Parenti

Kimberly Clausing @kclausing.bsky.social · May 21

🧵 (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.

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Reposted by Nathan Nunn

Mathieu Parenti @mathieupar.bsky.social · May 19

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

https://www.lemonde.fr/economie/article/2025/05/19/antonin-bergeaud-laureat-du-prix-du-meilleur-jeune-economiste-2025-l-europe-doit-s-engager-a-fond-dans-l-intelligence-artificielle_6607091_3234.html

t.co

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Mathieu Parenti @mathieupar.bsky.social · May 19

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

Reposted by Lionel Fontagné, Mathieu Parenti

Paris School of Economics @pse.bsky.social · May 5

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-...

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).

www.parisschoolofeconomics.eu

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Mathieu Parenti @mathieupar.bsky.social · Mar 30

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!

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Mathieu Parenti @mathieupar.bsky.social · Mar 27

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

Aligning Competitiveness and Sustainability: How Border Adjustments Can Strengthen the EU’s Agricultural Policy - Eutax

www.taxobservatory.eu

Mathieu Parenti @mathieupar.bsky.social · Mar 27

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.

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Mathieu Parenti @mathieupar.bsky.social · Mar 27

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

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Mathieu Parenti @mathieupar.bsky.social · Mar 27

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.

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Mathieu Parenti @mathieupar.bsky.social · Mar 27

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.

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Mathieu Parenti @mathieupar.bsky.social · Mar 27

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

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Mathieu Parenti @mathieupar.bsky.social · Mar 26

@hfadinger.bsky.social

Reposted by Mathieu Parenti

EU Tax Observatory @taxobservatory.bsky.social · Mar 26

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 👇

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Reposted by Carl Gaigné, Mathieu Parenti

EU Tax Observatory @taxobservatory.bsky.social · Mar 26

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 🧵👇

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Reposted by Grégory Claeys, Olivier Godechot, Mathieu Parenti , and 1 more Grégory Claeys, Olivier Godechot, Mathieu Parenti, Samuel Coavoux

Gabriel Zucman @gabrielzucman.bsky.social · Feb 7

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 🧵

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Reposted by Mathieu Parenti

Finbarr Bermingham @fbermingham.bsky.social · Feb 5

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...

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.

www.scmp.com

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Reposted by Mathieu Parenti

CESifo @cesifo.org · Jan 3

📣 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...

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...

www.cesifo.org

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Reposted by Alberto Bisin, Kim Oosterlinck, Stéphane Straub , and 1 more Alberto Bisin, Kim Oosterlinck, Stéphane Straub, Mathieu Parenti

Sascha O. Becker @essobecker.bsky.social · Jan 3

It's February at The Economic Journal ❤️

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

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

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 ...

academic.oup.com

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Reposted by Mathieu Parenti

Edward Elgar Publishing @elgarpublishing.bsky.social · Jan 2

💰 NEW: Research Handbook on the Economics of Tax Havens by Arjan Lejour and Dirk Schindler

FREE chapter: doi.org/10.4337/9781...

🔗 www.e-elgar.com/shop/isbn/97...

#TaxHavens #TaxAvoidance @jakobmiethe.bsky.social @valeriamerlo.bsky.social @mathieupar.bsky.social @davidragrawal.bsky.social

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Mathieu Parenti @mathieupar.bsky.social · Nov 26

⚠️ 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.

Mathieu Parenti @mathieupar.bsky.social · Nov 20

🚨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

Dropbox

tinyurl.com

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Reposted by Mathieu Parenti

Antonin Bergeaud @abergeaud.bsky.social · Nov 23

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

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.

www.lefigaro.fr

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Reposted by Johannes Boehm

Mathieu Parenti @mathieupar.bsky.social · Nov 20

Dropbox

tinyurl.com

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Reposted by Mathieu Parenti

Pierre Charbonnier @picharbonnier.bsky.social · Nov 20

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...

www.carbone4.com

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Reposted by Mathieu Parenti

Gabriel Zucman @gabrielzucman.bsky.social · Nov 18

The @taxobservatory.bsky.social is now on BlueSky!

Follow us for cutting-edge research on tax, and for the latest insights on the fast-moving policy conversation on global tax reforms

www.taxobservatory.eu

EU Tax Observatory

Learn more about taxation: research publications, notes, public events, a repository and interactive tools

www.taxobservatory.eu

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Reposted by Pol Antras, Ana María Santacreu, Mathieu Parenti

Ahmad Lashkaripour @lashkaripour.bsky.social · Nov 14

There's been a lot of debate about what economic theory says regarding tariffs.

Drawing on my research with quantitative economic models, here's a thread explaining the textbook logic for why "tariffs are bad" for revenue generation.

🧵 Let’s dive in!

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Reposted by Mathieu Parenti

Alan Beattie @alanbeattie.bsky.social · Nov 14

My Trade Secrets today. When Trump replaces Biden, America’s trading partners fear he will impose high unilateral tariffs, treat WTO rules with contempt and coerce them with threats of trade restrictions.

“No change there then” would be an exaggeration, but not a grotesque one.

on.ft.com/3Z5lDnr

A crumbling system of trade rules awaits Trump’s wrecking ball

[FREE TO READ] The new administration confronts a WTO already undermined by long-standing US disapproval

on.ft.com

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Reposted by Mathieu Parenti

Matt Collin @mattcollin.bsky.social · Nov 13

Since my employer EU Tax Obsevatory isn't here yet, reposting:

Join our webinar thursday on the updated #AtlasoftheOffshoreWorld!
🔹Get to know the Atlas & access its datasets
🔹Learn how it informs global tax reform debates
🔹Hear from dataset coordinators on their latest updates

t.co/XMgPhz9jf0

https://us06web.zoom.us/webinar/register/WN_gHw0d-EJRP-_5CC9mo1OdQ#/registration

t.co

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Reposted by Pol Antras, Ana María Santacreu, Mathieu Parenti , and 2 more Pol Antras, Ana María Santacreu, Mathieu Parenti, Eric Verhoogen, Tibor Besedeš

Thomas Sampson @thomsampson.bsky.social · Nov 12

Here is my attempt to systematically think through possible consequences of new Trump tariffs

Suppose US imposes 20% tariff on all goods imports

Effect 1: higher prices for goods imported into US. This hurts US consumers by raising living costs 1/

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Reposted by Stephen J. Redding, Yoto V. Yotov, Francesco Saraceno , and 7 more Stephen J. Redding, Yoto V. Yotov, Francesco Saraceno, Stephen Kinsella, Raymond Riezman, Raphael Auer, Mathieu Parenti, Simon Galle, Johannes Boehm, Tibor Besedeš