Julian Arato
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aratojulian.bsky.social
Julian Arato
@aratojulian.bsky.social
Professor of Law, University of Michigan

International law, trade, investment, contracts, corporations, etc
Pinned
The 8th edn of International Law: Cases and Materials is now out: faculty.westacademic.com/Book/Detail?...

The new edition is revised, streamlined, and updated throughout. If you’re already using the book, or thinking about doing so, please reach out! I’m happy to talk through how it’s changed.
Reposted by Julian Arato
1/19 Now on SSRN: [From Business Plans to International Rights](papers.ssrn.com/sol3/papers....), forthcoming in the Harvard International Law Journal.
From Business Plans to International Rights
<p><span><span>Multinational businesses have used a highly enforceable, specialized treaty regime to turn their plans into international rights that trump natio
papers.ssrn.com
November 7, 2025 at 4:43 PM
Reposted by Julian Arato
In advance of arguments in tariffs case this week, highly recommend reading the amicus brief by @timlmeyer.bsky.social, @aratojulian.bsky.social, Rachel Brewster, @harlangcohen.bsky.social, David Singh Grewal, @jbentonheath.bsky.social, @gregorycshaffer.bsky.social, and Chantal Thomas.
November 3, 2025 at 5:37 PM
Reposted by Julian Arato
Here's the link to the brief. Thanks to @timlmeyer.bsky.social. www.supremecourt.gov/DocketPDF/24...
October 27, 2025 at 1:32 PM
Reposted by Julian Arato
Here's the conclusion from the amicus brief in the IEEPA tariff cases by @aratojulian.bsky.social, Rachel Brewster, @harlangcohen.bsky.social, David Singh Grewal, @jbentonheath.bsky.social, @timlmeyer.bsky.social, Greg Shaffer, and Chantal Thomas.
October 24, 2025 at 5:33 PM
Reposted by Julian Arato
New post just out:

With five parties between 15%-26% of the vote our electoral system is going to produce increasingly mad results.

What would force a change?

If we did move to a new system what would it be?

How would it change politics?

(£/free trial)

open.substack.com/pub/samf/p/i...
Is PR coming to the UK?
And what happens if it does?
open.substack.com
October 23, 2025 at 7:57 AM
Check out this vital conference on countering gender apartheid put together by UM’s own @profkarimabennoune.bsky.social

Register in person or on zoom 👇
Join us Thurs SEPT 18 for

"Countering #GenderApartheid with International Law: A Strategic Convening"
@UMichLaw

Public hybrid panels 9AM-1PM ET; 1225 Jeffries Hall
Register for Zoom: tinyurl.com/4xxywu7h

Speakers incl: UN Special Rapporteur on #Afghanistan; Mariam Safi & Malala Yousafzai(video)
August 20, 2025 at 10:44 PM
Here Miles and Federica discuss the novel and tricky issues of state responsibility in the ICJ Climate Opinion, incl attribution, causation, and multiple responsibility.
July 25, 2025 at 4:06 PM
Reposted by Julian Arato
"The most significant development in international climate law since the adoption of the Paris Agreement" 🌍⚖️

MARIA ANTONIA TIGRE, MAXIM BÖNNEMANN, and ANTOINE DE SPIEGELEIR kick off a new joint blog symposium on the ICJ's advisory opinion on climate change.

verfassungsblog.de/the-icj-advi...
July 24, 2025 at 3:58 PM
An inspiring opinion for our challenging times. Law can’t do it all nor can courts. But they can do more than many give them credit for.

Here the ICJ takes the development of climate change law fully seriously. @justinauriburu.bsky.social & I get into the central prob of sources of law below 👇
July 24, 2025 at 2:46 PM
Reposted by Julian Arato
"‘the standard of due diligence for preventing significant harm to the climate system is stringent’, and requires not only the adoption of appropriate climate rules and measures but also heightened vigilance in their implementation and enforcement"
July 24, 2025 at 10:36 AM
Reposted by Julian Arato
Calling #InternationalLaw colleagues everywhere

Please submit panel proposals for the American Society of Intl Law @asilorg.bsky.social‬ 2026 Annual Meeting by

5 PM ET July 28

Our timely topic is "Advancing & Defending the Rule of Law"

tinyurl.com/mpexfthk
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2026 ASIL Annual Meeting | ASIL
tinyurl.com
July 23, 2025 at 11:05 AM
Good and strong explanation and deployment of customary international law due diligence obligation (part of duty to prevent) to avoid diffuse causation problems that always plague the legal responsibility for climate change.

And good for the ICJ to flesh out obligation of due diligence pretty far
July 23, 2025 at 2:12 PM
Reposted by Julian Arato
It was fun writing a piece with with Fernando Lusa Bordin for this Agora on the ICJ’s Certain Iranian Assets judgment.

We focus on the court’s assessment of the juridical status of companies in international law—under the treaty and (implicitly) in general IL.

academic.oup.com/icsidreview/...
May 19, 2025 at 8:45 PM
Reposted by Julian Arato
It's publication day! It is my fervent hope to see Western legal systems recognize the unassailable reality that human survival & flourishing is inseperable from the well-being of our planet. The ecocide conversation is one place to start: journals.law.harvard.edu/hrj/wp-conte...
journals.law.harvard.edu
May 13, 2025 at 5:17 PM
Kelsen has a run of brilliant articles in AJIL in the 40’s. This one was plain fun to read - a snapshot into a moment of hope and opportunity in a very different time.
Explore AJIL's archives with @aratojulian.bsky.social as he discusses Hans Kelsen's 1945 article "The Old and the New League: The Covenant and the Dumbarton Oaks Proposals" in this episode of AJIL Bookmarked. youtu.be/TM0zMu6I-hA?...
AJIL Bookmarked - Julian Arato on "The Covenant and the Dumbarton Oaks Proposals"
YouTube video by Cambridge University Press
youtu.be
May 7, 2025 at 3:10 PM
Reposted by Julian Arato
Four new editors appointed to EJIL: Talk! | by Devika Hovell, Nehal Bhuta, Marko Milanovic and Sarah Nouwen
Four new editors appointed to EJIL:Talk!
EJIL is delighted to announce that Julian Arato, Wanshu Cong, Miles Jackson and Justina Uriburu have joined Nehal Bhuta, Devika Hovell and Marko Milanovic as editors of EJIL:Talk! Julian is professor ...
www.ejiltalk.org
May 6, 2025 at 7:10 AM
Reposted by Julian Arato
Arato: The Institutions of Exceptions
Julian Arato (Univ. of Michigan - Law) has posted The Institutions of Exceptions (Michigan Journal of International Law, forthcoming). Here's the abstract:International economic law binds states’ hands in the interest of liberalizing markets in various ways, including cross border trade in goods and services (trade) and capital (investment). The treaty regimes for both trade and investment do this by disciplining states through legal rules, while preserving a modicum of governmental power over policy. Though not always recognized as such, the preservation of policy space in these regimes typically involves exceptions-style reasoning by adjudicators – formally in the case of most trade and some investment treaties, and informally in the investment treaty regime more generally. This "exceptions paradigm" of justification has worked well in the trade regime, where it has been especially key to securing a workable balance between market disciplines and regulatory policy space in the WTO/GATT context. But it has been less successful at striking a reasonable balance in the investment regime – irrespective of whether the paradigm has been formally codified in an exceptions clause. This Article seeks to explain why, by focusing on the institutions within which this mode of justification is embedded. Certain institutional differences between these regimes help explain the varied success of exceptionalism in trade and investment, in particular: the right of action (public vs private); the degree of judicial centralization (ad hoc arbitration vs court system); and the available remedies (retrospective compensation vs prospective injunctive relief). I argue that it is trade law’s public-oriented institutions that have made the exceptions clause workable – not the other way around. By contrast, investment law’s private-oriented institutions make that system particularly inhospitable to exceptions-style justification.      
dlvr.it
March 28, 2025 at 12:28 AM
Reposted by Julian Arato
“The Salzburg program is a rare opportunity for our students to get out into the world of international law at the cutting edge and engage with some of the brightest students and scholars of international law in the country,” said Professor @aratojulian.bsky.social.
Four Michigan Law students recently gathered with other top students from prestigious law schools around the country to discuss current issues of international law at the three-day Salzburg Cutler Fellows Program in Washington, DC.

Read more: michigan.law.umich.edu/news/student...
March 19, 2025 at 2:28 PM
Looking forward to this conversation.

A current draft of the paper is available here: papers.ssrn.com/sol3/papers....
March 18, 2025 at 1:17 PM
Reposted by Julian Arato
Looking forward to this Friday's colloquium, which puts @aratojulian.bsky.social in conversation w/ @timlmeyer.bsky.social to see how trade & investment treaties can make commitments sufficiently credible w/o overcoming the state’s ability to regulate in the public interest.
@aratojulian.bsky.social, Professor of Law at @umichlaw.bsky.social, will present at @universityofga.bsky.social School of Law's spring 2025 International Law Colloquium this Friday, March 21st with a talk entitled: “The Institutions of Exceptions.”

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March 18, 2025 at 12:58 PM