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David Martimort, and Jérôme Pouyet

2026, forthcoming

Pay-TV firms compete both downstream to attract viewers and upstream to acquire broadcasting rights. Because profits inherited from downstream competition satisfy a Convexity Property, allocating rights to the dominant firm maximizes the industry profit. Such an exclusive allocation of rights...

Ayden Higgins, and Koen Jochmans

2026, forthcoming

We consider the problem of identifying the parameters of a time-homogeneous bivariate Markov chain when only one of the two variables is observable. We show that, subject to conditions that we spell out, the transition kernel and the distribution of the initial condition are uniquely recoverable (...

Marc Bourreau, Bruno Jullien, and Yassine Lefouili

2026, forthcoming

We study the impact of horizontal mergers on the incentives of merging firms to invest in incremental innovation. We provide a decomposition of this impact that clarifies the various forces at work and the differences between demand-enhancing and cost-reducing innovation. Moreover, we derive...

Andreas Alfons, Aurore Archimbaud, Klaus Nordhausen, and Anne Ruiz-Gazen

2026, 27 pages, forthcoming

For multivariate data, tandem clustering is a well-known technique aiming to improve cluster identification through initial dimension reduction. Nevertheless, the usual approach using principal component analysis (PCA) has been criticized for focusing solely on inertia so that the first components...

Daniel L. Chen, Jiafeng Chen, and Gregory Lewis

2026, forthcoming

We provide some simple theoretical results that justify incorporating machinelearning in a standard linear instrumental variable setting, prevalent in empiri-cal research in economics. Machine learning techniques, combined with sample-splitting, extract nonlinear variation in the instrument that...

Marcel Boyer, and Maria Kouyoumijian

U of Toronto Press, 2026, 200 pages, forthcoming

André Grimaud, Gilles Lafforgue, and Luc Rougé

vol. 267, n. 113070, August 2026

Degrowth is often advocated as a response to the climate crisis, but its consistency with growth theory remains unclear. We develop an endogenous growth model of directed technical change and climate in which the economy relies on both a polluting fossil resource and a clean renewable alternative....

Céline Bonnet, and Catarina Goulão

vol. 403, n. 119425, August 2026

Ultra-processed food consumption is associated with obesity and chronic diseases, but its determinants are not well documented. This understanding is essential to inform policies aimed at improving public health. To this end, we construct a unique longitudinal dataset of French households’ food...

Camelia Goga, Hélène Juillard, Alina Matei, and Anne M. Ruiz

EDP Sciences, June 2026, 264 pages, forthcoming

Dans ce premier tome de l’ouvrage Techniques de sondage : de la théorie à la pratique avec R, les principales méthodes de tirage d’échantillon et d’estimation de totaux et de moyennes sont présentées d’un point de vue théorique, puis mises en oeuvre avec R, à partir d’exemples inspirés de...

Jørgen E. Olesen, Bart de Steenhuijsen Piters, Sophie Nicklaus, Jessica Aschemann-Witzel, Martha Bakker, Céline Bonnet, Hilke Bos-Brouwers, Lionel Bretillon, Henrik Brinch-Pedersen, Jeroen J. L. Candel, Tommy Dalgaard, Cécile Détang-Dessendre, Jørgen Eriksen, Edith J. M. Feskens, Agustín González Gaviola, Atze Jan van der Goot, Niels Halberg, Emmanuelle Kesse-Guyot, Marie Trydeman Knudsen, Per Kudsk, Miranda P. M. Meuwissen, Thomas Nesme, Stacy C. Pyett, Catherine M. G. C. Renard, Ruerd Ruben, Rogier P. O. Schulte, Antonius G. T. Schut, Louis-Georges Soler, Bo Jellesmark Thorsen, Stéphane Turolla, Hugo de Vries, Sigrid C. O. Wertheim-Heck, and Jette F. Young

June 2026

European agrifood systems face many challenges and dilemmas regarding sustainability, resilience and competitiveness. Through consultations with scientific experts, we identified five systemic lock-ins (governance and policy fragmentation; behavioural and dietary challenges; political economy and...