Associate Professor, Brooklyn Law School. I teach and write about international economic law (trade, investment, sovereign debt), public international law, and arbitration.https://bsky.app/profile/stratospahis.bsky.socialhttps://bsky.app/profile/stratospahis.bsky.social/post/3mnagf6hzsc2dDoes international law still matter? If so, how—and within what limits? I examine that question in a new article, "An Autopsy of the Appellate Body," out now in the U. Penn. J. Int'l L. Available here: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=541481801 Jun 2026 15:45 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3mnagf6hzsc2dhttps://bsky.app/profile/stratospahis.bsky.social/post/3mh6lsjvyfk2zThe Supreme court put an end to Trump’s emergency tariffs and refunds are now on their way. But 10 months of illegal tariffs caused damage no court can undo, I write in @Lawfare: https://www.lawfaremedia.org/article/the-ieepa-tariffs-are-gone-the-damage-is-done16 Mar 2026 13:46 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3mh6lsjvyfk2zhttps://bsky.app/profile/stratospahis.bsky.social/post/3md4isdd3ok2cInvestment treaties are the international agreements scholars love to hate. But do they really matter? Thanks so much to @andrewkjennings.com and @busscholarship.bsky.social for having me on to discuss my paper: "Are Investment Treaties Redundant? Evidence from Investor-State Disputes, ICSID Rev23 Jan 2026 20:06 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3md4isdd3ok2chttps://bsky.app/profile/stratospahis.bsky.social/post/3m4xmxhzo3c2zWhat options does Trump have if the Supreme Court rules against his emergency tariffs (as after yesterday's arguments seems likely)? I spoke to the The Associated Press about them here: https://apnews.com/article/tariffs-imports-trump-supreme-court-de303262a6b215885407cfecb6a8011806 Nov 2025 13:06 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3m4xmxhzo3c2zhttps://bsky.app/profile/stratospahis.bsky.social/post/3m4vzpw4ywk22A majority of justices on the Supreme Court seemed skeptical of the legality of the IEEPA tariffs during oral arguments today. But I was surprised that one of the government's key arguments wasn't subject to more scrutiny.05 Nov 2025 21:49 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3m4vzpw4ywk22https://bsky.app/profile/stratospahis.bsky.social/post/3m4b6fhk6f22d🚨New paper alert: "An Autopsy of the Appellate Body & the Rule of Law" 🚨 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=541481828 Oct 2025 14:47 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3m4b6fhk6f22dhttps://bsky.app/profile/stratospahis.bsky.social/post/3m3mtzr5eas2qAs President Trump's sweeping IEEPA tariffs head to the Supreme Court, I argue in a new @lawfaremedia.org piece, that they are based on pretext. https://www.lawfaremedia.org/article/the-ieepa-tariffs-are-based-on-pretext20 Oct 2025 12:48 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3m3mtzr5eas2qhttps://bsky.app/profile/stratospahis.bsky.social/post/3lxwvuybc5222I wrote a piece for The Lawfare Institute analyzing the Federal Circuit decision declaring Trump's emergency tariffs to be illegal. https://www.lawfaremedia.org/article/the-federal-circuit-rules-trump-tariffs-are-illegal03 Sep 2025 15:07 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3lxwvuybc5222https://bsky.app/profile/stratospahis.bsky.social/post/3lxugtvuqhc2r🚨 "Are Investment Treaties Redundant? Evidence from Investor-State Disputes" now live on ICSID Review website 🚨 https://academic.oup.com/icsidreview/article/40/1/73/8183333?searchresult=102 Sep 2025 15:32 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3lxugtvuqhc2rhttps://bsky.app/profile/stratospahis.bsky.social/post/3lsvrnfpmnc25Happy to share a new paper: "Are Investment Treaties Redundant? Evidence from Investor-State Disputes," forthcoming in ICSID Review - Foreign Investment Law Journal: tinyurl.com/5n8bmfn3 The Article analyzes a novel dataset of 318 ICSID investment treaty disputes to answer a fundamental question: https://tinyurl.com/5n8bmfn301 Jul 2025 13:12 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3lsvrnfpmnc25https://bsky.app/profile/stratospahis.bsky.social/post/3llw6soaipq2kHard to think of a more self-destructive prez action than the new tariffs. Simultaneously knee-caps our economy, destroys our credibility, undermines the institutions underpinning economic & geopolitical stability (which we built!) & pushes our allies into the arms of China. Utterly destructive.03 Apr 2025 15:12 +0000at://did:plc:f6wpra3pv7oi2c6tkixe7xon/app.bsky.feed.post/3llw6soaipq2k