Thomas Piketty Profile picture
Jun 9 9 tweets 4 min read Read on X
Colonial extraction and unequal exchange have shaped two centuries of North-South inequality.

🧵A thread on a NEW STUDY written with @gatonievas
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🔗 wid.world/news-article/u…
📊The study draws on a new database wbop.world tracking global trade flows and the balance of payments (goods, services, income, and transfers) across 57 core territories (48 main countries + 9 residual regions) from 1800 to 2025.
Check it out wbop.world
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Between 1800 and 1914, Europe built vast foreign wealth.
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This happened in spite of permanent trade deficits (driven by commodities), and thanks to large colonial transfers and capital income.
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Different rules of the game would have radically changed history.
Our counterfactual simulations show that without colonial transfers, Europe would have been a debtor — and South Asia or Latin America could have become global creditors.
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With fairer commodity prices, poorer countries would have had surpluses to invest in infrastructures, education & health.
If rich countries had absorbed the cost through reduced elite consumption, we could have reached near-complete productivity convergence between North and South by 2025.
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Today, global productivity convergence is still a distant goal. We live in a world characterised by persistent and increasing power imbalances, where the rules of the game remain rigged against the Global South.
Yet inequality and uneven development are not inevitable. They are the result of political choices that can be reversed.
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We urgently need structural reforms to the international system - e.g.:
🔹 better terms of exchange for developing countries;
🔹 a global clearing union (in the spirit of Keynes 1943);
🔹 an international reserve currency;
🔹 major reforms of the governance of IMF and other post-war institutions so as to give more voice to the global South
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[9/9] If you're reading this, it means you’ve ignored our previous calls to move to BlueSky!
For more content, follow us there:
bsky.app/profile/thomas… bsky.app/profile/wid.wo…

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More from @PikettyWIL

Jun 18
Work time reduction and gender equality should accelerate their historical trajectory in the 21st century.

The #FutureofWork must also respond to growing demands for planetary sustainability and socioeconomic justice.

🔗wid.world/news-article/p…

🧵A thread on our study with @MarieAndreesc, @thomaspiketty.bsky.social, R. Loubes & A.S Robilliard.

[1/8]Image
📊This study draws on harmonized historical series on labour hours by gender, employment status and sector — covering 40+ countries from 1800 to today.

Based on these historical trends, we outline a potential path to a high-productivity, high-leisure future by the year 2100.
[2/8]
📉 Over two centuries, global work hours have fallen significantly (-34%), from 3,200 hours (≈ 60-65 hours per week all year long) to 2,100 hours (≈ 40 hours per week including two weeks in paid vacation).

This happened through collective mobilizations, class struggles, changing institutions and social norms.
[3/8]Image
Read 8 tweets
Jun 16
Work time reduction and gender equality should accelerate their historical trajectory in the 21st century.

The #FutureOfWork must also respond to growing demands for planetary sustainability and socioeconomic justice.

🧵 A thread on a study with @MarieAndreesc, R. Loubes & A.S Robilliard.

[1/8]
wid.world/news-article/p…
📊 This study draws on harmonized historical series on labour hours by gender, employment status and sector — covering 40+ countries from 1800 to today.
Based on these historical trends, we outline a potential path to a high-productivity, high-leisure future by the year 2100.
[2/8]
📉 Over two centuries, global work hours have fallen significantly (-34%), from 3,200 hours (≈ 60-65 hours per week all year long) to 2,100 hours (≈ 40 hours per week including two weeks in paid vacation).
This happened through collective mobilizations, class struggles, changing institutions and social norms.
[3/8]Image
Read 8 tweets
Jun 24, 2024
Le début de la fin de la tripartition? Elections européennes et inégalités sociales en France 1994-2024, avec @CageJulia

Les fractures territoriales des Européennes 2024 en perspective historique

Trois résultats à retenir


wid.world/wp-content/upl…
wid.world/fr/news-articl…
(1) Des écarts de participation entre communes riches et pauvres à leur plus haut niveau historique

Notre démocratie est malade et le restera tant que les partis au pouvoir et un trop grand nombre de médias concentreront leur attention sur les classes sociales favorisées Image
(3) La fracture territoriale s'est approfondie et atteint des niveaux inédits depuis l'entre-deux-guerres et la fin du 19e siècle

Pour poursuivre le processus de rebipolarisation, le bloc de gauche doit reconquérir une proportion plus importante de l’électorat populaire des bourgs et des villagesImage
Image
Read 4 tweets
Nov 23, 2022
What's new about global inequality?
WID.world just released its new annual updates, with novel findings from East Asia, Latin America, Europe, the Middle East & North Africa, Subsaharan Africa, North America, Russia & Central Asia
wid.world/news-article/w…
See new findings on plutocratic China by regional coordinator Zhexun Mo
Bottom 50% wealth share is now only 6%, vs 70% for the top 10% and 10% for the top 0,001% alone
This raises serious doubt about Xi Jinping's desire to fight corruption & rebalance the distribution of wealth
See also complete East Asia update by Zhexun Mo
wid.world/news-article/w…
Read 9 tweets
Dec 7, 2021
Download the new World Inequality Report 2022!
Freely available in English, French, Spanish, Mandarin, Arabic, Hindi, Russian, German, Turkish
A world tour of new global inequalities after Covid
See below 3 key lessons in 3 figures
wir2022.wid.world/www-site/uploa…

wir2022.wid.world
Key lesson 1: we observe an extreme level of wealth concentration across the world. The richest 10% own around 60-80% of wealth in the various world regions. The poorest 50% always own less than 5%. And wealth inequality has been rising after Covid. Image
Key lesson 2: women's labor income share is far below 50% in every world region; at the global level in 2020 women's share is about 35% (vs 65% for men); it has been rising since 2000 (33% for women, 67% for men), but the progress is very slow, and even negative in some regions Image
Read 4 tweets
Apr 6, 2020
All slides from my cancelled NYU teaching are now online

Lecture 1: Development, state formation & inequality in the long-run: from ternary to proprietarian societies
piketty.pse.ens.fr/files/PikettyN…
⬇️
Lecture 2: Property rights & development, 18c-19c: European variants (France, Britain, Sweden)
piketty.pse.ens.fr/files/PikettyN…

Lecture 3: Slave societies, abolitions & colonialism (Caribbean, US, Brasil, Africa)
piketty.pse.ens.fr/files/PikettyN…
⬇️
Lecture 4: Colonial societies, state formation and comparative development (India, China, Japan)
piketty.pse.ens.fr/files/PikettyN…

Lecture 5: The Great Transformation of the 20th century: from proprietarian to social-democratic societies
piketty.pse.ens.fr/files/PikettyN…
⬇️
Read 5 tweets

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