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Céline Giner, Céline Nauges et Katherine Hassett
2026, à paraître
Matti Liski et François Salanié
Jérôme Bolte, Tam Le, Eric Moulines et Edouard Pauwels
Motivated by the extensive application of approximate gradients in machine learning and optimization, we investigate inexact subgradient methods subject to persistent additive errors. Within a nonconvex semialgebraic framework, assuming boundedness or coercivity, we establish that the method yields...
Léo Portales, Elsa Cazelles et Edouard Pauwels
Lloyd’s algorithm is an iterative method that solves the quantization problem, that is, the approximation of a target probability measure by a discrete one, and is particularly used in digital applications. This algorithm can be interpreted as a gradient method on a certain quantization functional...
Rossi Abi Rafeh, Pierre Dubois, Rachel Griffith et Martin O'Connell
We develop a dynamic equilibrium model of firm competition to analyze the effects of counterfactual policies, such as taxes and advertising restrictions, on pricing, advertising, consumption, and welfare. Using micro-level data, we estimate how consumer exposure to television commercials influences...
Violeta I. Haas, Konstantin Bogatyrev, Tarik Abou-Chadi, Heike Klüver et Lukas F. Stoetzer
Do strategies of state-sponsored homophobia translate into electoral gains? While a growing body of literature documents the increasing politicization of LGBTQ- and gender-related issues by illiberal elites, little is known about the electoral effects of these strategies. We address this important...
Michael Albertus et Victor Gay
Early modern European powers were beset by episodic unrest as they sought to consolidate their authority and build empires. We examine how growing state communication networks and the penetration of society impacted unrest by combining original and detailed parish-level data from pre-Revolutionary...
Victor Gay, Paula Gobbi et Marc Goni
Cécile Aubert, Yann Raineau et Marc Raynal
Decision Support Systems (DSS) with embedded best management practices help reduce pesticide use. However, costly experimentation is necessary to learn about the quality of their data processing and recommendation models. We study farmers’ choices to try such a DSS. Due to order effects, learning...
Romain Espinosa et Nicolas Treich
We provide a non-anthropocentric rationale for implementing a levy on meat consumption due to animal-welfare considerations. It operates as a Pigouvian tax and addresses externalities on farmed animals. Under total utilitarianism, the levy is a subsidy when an animal’s life is worth living, and a...
