1/ Big news! Today, we officially launch the International Tax Observatory (#ITO)🚀 Building on the foundation of the EUTO, we are expanding our mission to address global tax evasion, wealth concentration, illicit financial flows & the intersection of taxation & the environment.

2025 highlights: ✨ Inequality placed on the agenda of the 𝗚𝟮𝟬 𝘀𝘂𝗺𝗺𝗶𝘁 ✨2025 𝗖𝗹𝗶𝗺𝗮𝘁𝗲 𝗜𝗻𝗲𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗥𝗲𝗽𝗼𝗿𝘁 published in October ✨2026 𝗪𝗼𝗿𝗹𝗱 𝗜𝗻𝗲𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗥𝗲𝗽𝗼𝗿𝘁 published in December ✨27 Working Papers authored by 78 researchers ...and more! 📖 Flip through our report heyzine.com/flip-book/22...

To make the most of the World Inequality Database, consult the DINA Guidelines and other resources: wid.world/methodology/ This 3rd edition includes improved or new: 🔹macro aggregates 🔹income and wealth definitions 🔹data-quality flags 🔹sections on wealth distribution and gender inequality

🎧 Listen to @ricardo-eco.bsky.social, lead author of the 2026 World Inequality Report, who discusses the main results of the report, as well as his research on the benefits of early schooling and how early human capital investment closes the inequality gap⬇️ savageminds.substack.com/p/ricardo-go...

Un débat essentiel pour reprendre la main sur l’énergie ⚡ 🗣️ Avec @lucaschancel.bsky.social et Anne Debrégeas 🎙️Animé par @jadelindgaard.bsky.social 📅 Jeudi 29 janvier, 19h Entrée libre. Inscription conseillée ▶️ inequalitylab.world/fr/event/a-l... @attac.org

🔴Global leaders gather in #Davos today, as extreme concentration reaches record highs. For the latest data, explore our World Inequality Report2026 wir2026.wid.world On political inequality, don't miss our friends at @oxfaminternational.bsky.social's new report www.oxfamamerica.org/explore/rese...

How do people argue for redistribution in Norway 🇳🇴 vs the U.S. 🇺🇸? Do debates lean more on emotional fairness arguments or analytical externality arguments? And what type of argument convinces who? New study by @mortenstostad.bsky.social, M. Lobeck & C. de Meulenaer ▶️ wid.world/news-article...

Apply now to the #inequality and #institutions program! Great opportunity to learn from World Inequality Lab's researchers including @thomaspiketty.bsky.social @ignacioflores.bsky.social & @cmtneztt.bsky.social 📆From June 15 to 19, 2026 📍Paris ✍️Applications: From January 14 to May 13, 2026

Le décrochage européen est plus une histoire de ralentissement que de point de non retour. La suite dans ma tribune @lemonde.fr fondée sur nos travaux du @wid.world où nous discutons tendances historiques avec R. Loubes, @thomaspiketty.bsky.social et A.-S. Robillard: www.lemonde.fr/idees/articl...

🗣️"Trump a parfaitement compris que ceux qui contrôlent l'énergie contrôlent le monde.", a dit @lucaschancel.bsky.social à @nabilwakim.bsky.social pour le journal @Le Monde 👇 Notre codirecteur sera l’un des invités du Festival des idées « Chaleur humaine », le 18 janvier à Paris.

🎧 Listen to this podcast to explore the key findings of our newly launched World Inequality Report with @thomaspiketty.bsky.social 👇👇👇

Nations can't wait for billionaires to die for them to pay tax. Last @wid.world report couldn't be more timely: @thomaspiketty.bsky.social explained @channel4news.bsky.social Helia Ebrahimi why annual wealth taxes on the super-rich beat inheritance taxes. 📺Full : www.youtube.com/watch?v=XeZo...

⚠️The top 0.001% - less than 60,000 multi-millionaires - owns three times more wealth than the entire bottom half of humanity combined. Explore more findings in this third edition of the World Inequality report 👇 wir2026.wid.world

🗣️" #Inequality is increasing at a very fast and alarming pace. But we see that redistributive policies are effective. All we need is political will”, said @ricardo-eco.bsky.social, author of our World Inequality Report for @france24.com 🔗 Report: wir2026.wid.world www.youtube.com/watch?v=WhPH...

🗣️"Le système économique mondial est en train de créer les conditions de son propre épuisement", a dit @lucaschancel.bsky.social en revenant sur les chiffres de notre Rapport sur les inégalités mondiales. 🔗 Résumé en français ici : wir2026.wid.world/www-site/upl... www.bfmtv.com/economie/pat...

Read @theguardian.com coverage of our World Inequality Report 2026 wir2026.wid.world 👇

Today, we are publishing our World Inequality Report, which reviews the most recent #inequalitydata and exposes the magnitude of #inequality across time, space and all its dimensions. 👇Share this thread, share the report! www.youtube.com/watch?v=R67u...

📰 En Une du @lemonde.fr aujourd'hui : "L'extrême concentration des richesses mondiales" 3 article à lire pour découvrir en avant-première Le Rapport sur les inégalités mondiales 2026 www.lemonde.fr/economie/art...

South Africa remains the most unequal country in the world, with the top 10% earning 70% of all pretax income. New study by A. Gethin & L. Czajka shows that inequality in 2019 was as high as in 1993. Racial inequality reduced only because top 10% Black incomes surged. ▶️ wid.world/news-article...

Coming next week. Stay tuned. ⏳ #WIR2026 #InequalityData wid.world/news-article...

One week left to submit to the Call for Papers for the World Inequality Conference 2026, which will take place at the Paris School of Economics on June 4–5, 2026. inequalitylab.world/en/event/wor...

🟢 Climate change hits the poorest the hardest shows *Chapter 2.1 of the 2025 #ClimateInequality Report* ⚠️The bottom 50% wil bear ¾ of all income losses from climate change by 2050. Read more in the report 🔗 wid.world/news-article...

Research shows strong public support for global climate & redistributive policies — and this new study by @adrien-fabre.bsky.social confirms it, through an original survey representative of the population in 🇫🇷 🇩🇪 🇮🇹 🇵🇱 🇪🇸 🇬🇧 🇨🇭 🇯🇵 🇷🇺 🇸🇦 🇺🇸 Read more: wid.world/news-article...

🔴 Over 500 economists, including WIL co-director @thomaspiketty.bsky.social, call on world leaders to set up an International Panel on Inequality, as recommended by the Extraordinary Committee's report to the #G20, led by @josephestiglitz.bsky.social 🔗Letter www.equals.ink/p/sign-on-le...

🚨 We’re hiring! We're looking for a General Manager (M/F) to oversee HR, finance & operations on a fixed term contract 📍 Paris 🕒 Start: Dec 2025 🌍 Bilingual FR/EN required 🎓 Experience: 5+ years in management or research admin Apply now 👉 www.parisschoolofeconomics.eu/en/job-oppor...

🟢 Planned new oil, gas, and coal extraction alone could exhaust the 1.7°C carbon budget — This is one of the key findings presented in *Chapter 1.2 of the 2025 #ClimateInequality Report* outlining the scale of ongoing investments projects. Read more in this thread [1/5]🧵

There's less than 1️⃣ month to go until the deadline for submissions to our #CallForPapers for the 2026 World Inequality Conference. 🏃‍♀️Hurry up and submit your paper by 1 December! inequalitylab.world/en/event/wor...

We welcome the @josephestiglitz.bsky.social's report and back its call for a global panel on inequality, modelled after the IPCC. It’s time to scale up the work we’ve championed for over 10 years to measure and address the drivers of inequality. www.reuters.com/sustainabili...

🟢Wealthy individuals fuel the climate crisis through their investments even more than through their consumption and lifestyles — This is one of the key findings presented in *Chapter 1 of the 2025 #ClimateInequality Report*. Read more in this thread [1/6]🧵

🚨NEW REPORT: The Climate Inequality Report 2025 reveals how wealth inequality and the climate crisis drive each other. What's new in the report? — A thread🧵 Download the report▶️ wid.world/news-article... #cop30 #climatejustice #inequality

Does #equality promote #inclusion and #productivity, or hinder #growth❓ 🔴Our new study revisits this long-running debate — finding a strong positive link between equality and development over the long run. Read more▶️ wid.world/news-article...

🔴Le replay du Débat de l’Égalité avec @lucaschancel.bsky.social autour de son dernier livre est désormais disponible👇 "L'histoire montre que les sociétés contemporaines ont le choix dans l'organisation du contrôle de l'énergie" youtu.be/X5bXwcd8qcg?... @editionsduseuil.bsky.social @pse.bsky.social

Do individuals move ⤴️ or⤵️ the income ladder because of jumps in labor or capital income, or both? 👉Upward mobility is primarily driven by labor income but almost never by capital alone, find @marcoranaldi.bsky.social @joelliambuehler.bsky.social @robertoiacono.org ▶️ wid.world/news-article...

👇 A lire dans @lemonde.fr, l'interview de @lucaschancel.bsky.social au sujet de son dernier livre 'Energie et Inégalités'. Rencontre + dédicaces jeudi 9 octobre, 18h à Paris School of Economics👉 S'inscrire inequalitylab.world/fr/event/deb... @pse.bsky.social @editionsduseuil.bsky.social

🔴Demain sort le nouveau livre de @lucaschancel.bsky.social aux @editionsduseuil.bsky.social #Énergie #Inégalités 📚 Pas le temps d'aller en librairie? Venez la semaine prochaine 9 oct à @pse.bsky.social pour une rencontre + dédicaces ! 🎟️Gratuit sur inscriptions inequalitylab.world/fr/event/deb...

Racial minorities in France face substantial earnings penalties, with Middle Eastern/North African and Sub-Saharan African individuals most affected. This is one of the key findings of a new study by @yajnagovind.bsky.social @paolosantini.bsky.social & E. Derenoncourt. ▶️ wid.world/news-article...

From trade wars to @un.org talks, global tax cooperation is at stake. Oct 2, Paris, #ICRICT Commissioners, policymakers & civil society debate how to build a fairer international tax system amid great-power rivalry. ⏰6–8PM 📍Paris School of Economics Inscriptions: shorturl.at/I6Kvp #TaxThePower

🔴The Keynote Lecture given by Thomas Piketty at LSE last week is now available on REPLAY www.youtube.com/watch?v=iUcL...

🗣️ "A 2% wealth tax is the absolute minimum for France. Given the size of the public debt and the scale of the new investments required, it will not be sufficient. Still, it is a useful minimum to start with". @thomaspiketty.bsky.social's interview for @bloomberg.com👇 www.youtube.com/watch?v=6Qni...

Don't miss tomorrow's event with @thomaspiketty.bsky.social on global #inequality including preliminary results from the #GlobalJusticeProject. 📍In-person and online public event 🎟️ Registration www.lse.ac.uk/events/globa... @lsepress.bsky.social

📢 We’re excited to announce that the 3rd edition of the World Inequality Conference will take place on 4–5 June 2026 in Paris. 📄The call for papers is now open — submit by December 1! ▶️ inequalitylab.world/en/event/wor... @pse.bsky.social @cris-sciencespo.bsky.social @taxobservatory.bsky.social

🔴 🌐First global database of wealth accumulation covering 1800–2025 now available 👇 wid.world/news-article... @cmtneztt.bsky.social @thomaspiketty.bsky.social @alisodano.bsky.social @anmol-smnch.bsky.social @jonasdietrich.bsky.social @gatonievas.bsky.social

"Un pays qui refuse de faire payer à ses plus riches citoyens le même impôt que les classes moyennes et populaires, qui renonce à toute possibilité... c'est un pays qui abandonne sa souveraineté" a dit notre commissaire @thomaspiketty.bsky.social dans BFMTV

Notre niveau de dette publique est aussi élevé qu'au moment de la révolution française. L'histoire montre que ce niveau d'endettement se règle toujours, au moins en partie, par des mesures exceptionnelles de redistribution du patrimoine privé, pas par l’austérité. www.radiofrance.fr/francecultur...

On the 10th anniversary of *Capital in the 21st Century* and 5th of *Capital and Ideology*, @thomaspiketty.bsky.social shared key lessons from his work + insights on global inequality transformations, emphasizing reasons for optimism👇 wid.world/news-article...

🔴@thomaspiketty.bsky.social's interview at April #TaxingBillionaires conference now available. Piketty outlined what a broader tax schedule could look like—with rates reaching up to 90% within a fully progressive structure from bottom to top. 📺 youtu.be/YsbInx_MnWo?... 📄 wid.world/news-article...

💡 Deux des intellectuels les plus influents de notre temps engagent un dialogue passionnant sur les enjeux contemporains de l'égalité : défis sociaux, économiques et politiques qui façonnent nos sociétés modernes, mécanismes qui creusent les inégalités... 📚 En librairie le 5 septembre

Pourquoi l’histoire de l’énergie est-elle liée à celle des inégalités ? Comment penser la transition énergétique à l’aune des conflits de répartition des richesses ? 📆 Rencontre & dédicace le 9 octobre avec @lucaschancel.bsky.social ✍️ Gratuit sur inscription inequalitylab.world/fr/event/deb...

We welcome this initiative launched by South Africa and led by Professor @josephestiglitz.bsky.social. ⚠️According to wid.world, the poorest half of the world's population owned just 2% of global wealth in 2023, while the richest 10% controlled 76%.” www.reuters.com/world/africa...

What should be publicly owned, or privatised? @ewanmg.bsky.social builds develops a theory of when public or private ownership leads to better outcomes, using comparative data from OECD countries in sectors such as water, rail, electricity, and telecommunications ▶️ wid.world/news-article...