Julian Arato
@aratojulian.bsky.social
Professor of Law, University of Michigan
International law, trade, investment, contracts, corporations, etc
International law, trade, investment, contracts, corporations, etc
Pinned
Julian Arato
@aratojulian.bsky.social
· Dec 4
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.
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.
It’s too often said that int’l law demands little of states re: democracy at home. For years, African continental institutions have developed and fought for robust international democratic norms. This symposium examines the trajectory, promise, and perils of Africa’s International Law of democracy.
Happy Monday! AJIL Unbound's latest symposium "Africa's International Law of Democracy" is now online! Click here to begin reading: www.cambridge.org/core/journal...
November 17, 2025 at 3:08 PM
It’s too often said that int’l law demands little of states re: democracy at home. For years, African continental institutions have developed and fought for robust international democratic norms. This symposium examines the trajectory, promise, and perils of Africa’s International Law of democracy.
Reposted by Julian Arato
This is one of the most important issues that AJIL has put out in recent years.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
The October issue of AJIL is now available online! This issue places special focus on the CPUS section, where members of the Board have written essays on the various policies and changes under the second Trump administration. www.cambridge.org/core/journal...
November 14, 2025 at 3:17 PM
This is one of the most important issues that AJIL has put out in recent years.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
Reposted by Julian Arato
The October issue of AJIL is now available online! This issue places special focus on the CPUS section, where members of the Board have written essays on the various policies and changes under the second Trump administration. www.cambridge.org/core/journal...
November 14, 2025 at 1:29 PM
The October issue of AJIL is now available online! This issue places special focus on the CPUS section, where members of the Board have written essays on the various policies and changes under the second Trump administration. www.cambridge.org/core/journal...
This is one of the most important issues that AJIL has put out in recent years.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
The October issue of AJIL is now available online! This issue places special focus on the CPUS section, where members of the Board have written essays on the various policies and changes under the second Trump administration. www.cambridge.org/core/journal...
November 14, 2025 at 3:17 PM
This is one of the most important issues that AJIL has put out in recent years.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
The elongated section on “Contemporary Practice of the US” represents an effort by the AJIL Board to set out and critically examine the US approach to intl law at our current moment, through a series of focused essays.
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
1/19 Now on SSRN: [From Business Plans to International Rights](papers.ssrn.com/sol3/papers....), forthcoming in the Harvard International Law Journal.
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.
Here's the link to the brief. Thanks to @timlmeyer.bsky.social. www.supremecourt.gov/DocketPDF/24...
November 3, 2025 at 5:37 PM
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.
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
Here's the link to the brief. Thanks to @timlmeyer.bsky.social. www.supremecourt.gov/DocketPDF/24...
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
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.
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...
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
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...
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...
Reposted by Julian Arato
For more, see my latest over at EJIL Talk! www.ejiltalk.org/the-ilos-rig... End
The ILO’s Right to Strike: Distinguishing Non-Binding Principles from Binding Conventions at the ICJ
From 6-8 October, 2025, the International Court of Justice held public hearings in response to the International Labour Organization (ILO)’s request for an advisory opinion on the following question: ...
www.ejiltalk.org
October 20, 2025 at 2:16 PM
For more, see my latest over at EJIL Talk! www.ejiltalk.org/the-ilos-rig... End
Check out this vital conference on countering gender apartheid put together by UM’s own @profkarimabennoune.bsky.social
Register in person or on zoom 👇
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)
"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
Check out this vital conference on countering gender apartheid put together by UM’s own @profkarimabennoune.bsky.social
Register in person or on zoom 👇
Register in person or on zoom 👇
Here Miles and Federica discuss the novel and tricky issues of state responsibility in the ICJ Climate Opinion, incl attribution, causation, and multiple responsibility.
State Responsibility in the ICJ’s Advisory Opinion on Climate Change | by Federica Paddeu and Miles Jackson
State Responsibility in the ICJ’s Advisory Opinion on Climate Change
On 23 July 2025, the ICJ delivered its advisory opinion on the Obligations of States in Respect of Climate Change. Although much of the opinion is devoted to the clarification of an extensive set of p...
www.ejiltalk.org
July 25, 2025 at 4:06 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.
Reposted by Julian Arato
Excellent post by @aratojulian.bsky.social & Justina Uriburu - www.ejiltalk.org/treaty-and-c...
Treaty and Custom in the ICJ’s Climate Change Opinion
The International Court of Justice has released its long-awaited Advisory Opinion on Obligations of States in respect of Climate Change. Delivered yesterday by a unanimous Court, the Opinion marks a t...
www.ejiltalk.org
July 24, 2025 at 3:53 PM
Excellent post by @aratojulian.bsky.social & Justina Uriburu - www.ejiltalk.org/treaty-and-c...
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...
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
"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...
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...
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 👇
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 👇
Treaty and Custom in the ICJ’s Climate Change Opinion | by @aratojulian.bsky.social and @justinauriburu.bsky.social
Treaty and Custom in the ICJ’s Climate Change Opinion
The International Court of Justice has released its long-awaited Advisory Opinion on Obligations of States in respect of Climate Change. Delivered yesterday by a unanimous Court, the Opinion marks a t...
www.ejiltalk.org
July 24, 2025 at 2:46 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 👇
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 👇
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"
Treaty and Custom in the ICJ’s Climate Change Opinion | by @aratojulian.bsky.social and @justinauriburu.bsky.social
Treaty and Custom in the ICJ’s Climate Change Opinion
The International Court of Justice has released its long-awaited Advisory Opinion on Obligations of States in respect of Climate Change. Delivered yesterday by a unanimous Court, the Opinion marks a t...
www.ejiltalk.org
July 24, 2025 at 10:36 AM
"‘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"
Reposted by Julian Arato
Treaty and Custom in the ICJ’s Climate Change Opinion | by @aratojulian.bsky.social and @justinauriburu.bsky.social
Treaty and Custom in the ICJ’s Climate Change Opinion
The International Court of Justice has released its long-awaited Advisory Opinion on Obligations of States in respect of Climate Change. Delivered yesterday by a unanimous Court, the Opinion marks a t...
www.ejiltalk.org
July 24, 2025 at 8:21 AM
Treaty and Custom in the ICJ’s Climate Change Opinion | by @aratojulian.bsky.social and @justinauriburu.bsky.social
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
1/2
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
1/2
2026 ASIL Annual Meeting | ASIL
tinyurl.com
July 23, 2025 at 11:05 AM
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
1/2
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
1/2
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
And good for the ICJ to flesh out obligation of due diligence pretty far
The ICJ is delivering the climate change Advisory Opinion www.icj-cij.org/multimedia-l...
Live webstream | INTERNATIONAL COURT OF JUSTICE
www.icj-cij.org
July 23, 2025 at 2:12 PM
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
And good for the ICJ to flesh out obligation of due diligence pretty far
Reposted by Julian Arato
IELP blog post: The UK Joins the MPIA
The UK Joins the MPIA
The UK has just set out its new trade strategy, and one point in there is that it will be joining the MPIA: The WTO has an almost unique function to resolve trade disputes. That trade dispute system is busier...
dlvr.it
June 26, 2025 at 2:06 PM
IELP blog post: The UK Joins the MPIA
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/...
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
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/...
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/...
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
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...
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
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.
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
Four new editors appointed to EJIL: Talk! | by Devika Hovell, Nehal Bhuta, Marko Milanovic and Sarah Nouwen