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September 1, 2026 | Economics

Giovanni Ricco Appointed Programme Director of CEPR's Monetary Economics and Fluctuations Programme
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Giovanni Ricco (CREST, École Polytechnique) becomes Programme Director of CEPR's Monetary Economics and Fluctuations programme, effective 1 September 2026.

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August 27, 2026 | Economics

Why Firms Hesitate to Hire Occupation Switchers
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Jeremias Klaeui, postdoctoral researcher at CREST, working on the ERC INASHI project, for RFBerlin Research Insights

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July 21, 2026 | Economics, Finance

A Thriving PhD Community: Two Doctoral-Led Research Events at CREST This June
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In June 2026, CREST's PhD community organized two research events — the annual PhD Workshop and the first Junior Finance Research Day — showcasing its vitality.

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July 3, 2026 | Economics

Démographies internationales, un nouveau rapport de force ?, avec Pauline Rossi
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D’ici la fin du siècle, les dynamiques démographiques seront très variées d’une région du monde à l’autre. Le déclin de la population a déjà commencé dans 63 pays. A elle seule, la Chine pourrait perdre jusqu’à 800 millions d’habitants sur les 1,4 milliards actuels. A l’autre extrême, la croissance du continent africain est encore rapide. Sa population pourrait atteindre près de 4 milliards d’habitants contre 1,5 milliards aujourd’hui. Les pays restants, dont la France, atteindront bientôt leur pic démographique. Leur croissance actuelle est liée davantage à l’immigration qu’à la natalité.

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June 24, 2026 | Sociology

« Bataille culturelle », l’omniprésence d’une expression minée, avec Etienne Ollion
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La métaphore envahit les discours médiatiques et politiques, nourrit pétitions ou travaux universitaires, comme elle justifie les investissements de grandes fortunes dans le secteur de la culture et des médias. Retour sur la trajectoire historique et les multiples sens d’une notion floue, voire piégeuse.

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July 2, 2026 | Economics

Marion Brouard, Young CREST Graduate, Honored with Two Prestigious Awards
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Marion Brouard, a young CREST PhD graduate, receives the IP Paris 2026 Thesis Award and the Distinguished CESifo Affiliate Award for her research on inequality.

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Publications

sociology

Forwarding to the choir: topic assortativity in far-right Telegram networks

I address the classical problem of opinion homophily in online networks with a case study investigating how topic-level assortativity structures far-right communication on Telegram. Drawing on 61,346 ...

Houri Yasmine

Applied Network Science, Volume 11, article nimber 45, 2026

sociology

Framing the Fringe: Dynamics of Ingroup and Outgroup Narratives in Fringe Telegram Channels

Telegram has become a key platform for fringe political and conspiratorial movements, offering minimal moderation and wide reach. We analyze how such communities construct rhetorical identities via in ...

Dutta Upasana, Houri Yasmine

WebSci '26: Proceedings of the 18th ACM Web Science Conference 2026, 2026

finance

Combination of traditional and parametric insurance: calibration method based on the optimization of a criterion adapted to heavy tail losses

In this paper, we address the problem of providing insurance protection against heavy-tailed losses for which the expected loss may not even be finite. The product we study combines traditional insura ...

Lopez Olivier, Nkameni Daniel

Scandinavian Actuarial Journal, 2026

statistics

A Unifying View of Variational Generative Wasserstein Flows

Many modern generative models can be viewed as minimizing divergences between probability distributions, yet they rely on different algorithmic and geometric principles. Wasserstein gradient flows pro ...

Caucheteux Paul, Bonet Clément, Korba Anna

ICML 2026, 2026