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Jean-Pierre Florens, and Anna Simoni
vol. 39, n. 2, 2021, pp. 482–492
Sandrine Casanova, and Eve Leconte
Abdelaati Daouia, and Anne Ruiz-Gazen (eds.), 2021
In survey analysis, the estimation of the cumulative distribution function (cdf) is of great interest as it facilitates the derivation of mean/median estimators for both populations and sub-populations (i.e. domains). We focus on small domains and consider the case where the response variable is...
Jérôme Bolte, Tam Le, Edouard Pauwels, and Antonio Silveti-Falls
M. Ranzato, A. Beygelzimer, Y. Dauphin, P.S. Liang, and J. Wortman Vaughan (eds.), 2021, pp. 13537–13549
In view of training increasingly complex learning architectures, we establish a nonsmooth implicit function theorem with an operational calculus. Our result applies to most practical problems (i.e., definable problems) provided that a nonsmooth form of the classical invertibility condition is...
Christophe Bontemps, and Valérie Orozco
Fanny Lafouresse, Romain Jugele, Sabina Müller, Marine Doineau, Valérie Duplan-Eche, Eric Espinosa, Marie-Pierre Puissegur, Sébastien Gadat, and Salvatore Valitutti
2021
Cytotoxic immune cells are endowed with a high degree of heterogeneity in their lytic function, but how this heterogeneity is generated is still an open question. We therefore investigated if human CD8+ T cells could segregate their lytic components during telophase, using imaging flow cytometry,...
Paul Seabright, Jonathan Stieglitz, and Karine Van Der Straeten
vol. 3, 2021
Political philosophers have long drawn explicitly or implicitly on claims about the ways in which humanbehaviour is shaped by interactions within society. These claims have usually been based on introspection,anecdotes or casual empiricism, but recent empirical research has informed a number of...
Christine Thomas-Agnan, Thibault Laurent, Anne Ruiz-Gazen, Thi-Huong-An Nguyen, Raja Chakir, and Anna Lungarska
Peter Filzmoser, Karel Hron, Josep Antoni Martín-Fernández, and Javier Palarea-Albaladejo (eds.), 2021
Econometric land use models study determinants of land use shares of different classes: “agriculture”, “forest”, “urban” and “other” for example. Land use shares have a compositional nature as well as an important spatial dimension. We compare two compositional regression models with a spatial...
Mamadou Thiam, Jean-Claude Kouakou Brou, and Benur Andrade Varela
vol. 36, n. 4, December 2021, pp. 519–548
As a result of COVID-19, the export of medical goods has been subject to various global restrictions. Consequently, several countries have increased the supply of medical goods to alleviate the effects of this health crisis. This study entails a theoretical and empirical analysis of the effects of...
Bruno Jullien, and Wilfried Sand-Zantman
vol. 54, n. 100880, 2021
We propose an analysis of platform competition based on the academic literature with a view towards competition policy. First, we discuss to which extent competition can emerge in digital markets and show which forms it can take. In particular, we underline the role of dynamics, but also of...
Claude Crampes, and Michel Moreaux
vol. 72, n. 3, 2021, pp. 377–420
The article analyzes the optimal management of hydroelectric dams when natural water inflows follow predictable cycles. The Hotelling rule which determines the trajectory of the value of water in stock must apply cyclically, taking into account the seasonal breaks in water supplies and the needs to...
