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Abdelaati Daouia, Jean-Pierre Florens et Léopold Simar
vol. 14, avril 2020, p. 1–23
In stochastic frontier models, the regression function defines the production frontier and the regression errors are assumed to be composite. The actually observed outputs are assumed to be contaminated by a stochastic noise. The additive regression errors are composed from this noise term and the...
Pierre Dubois, Paulo Albuquerque, Olivier Allais, Céline Bonnet, Patrice Bertail, P. Compris, Saadi Lahlou, Nathalie Rigal, Bernard Ruffieux et Pierre Chandon
n° 20-1088, avril 2020
To examine whether four pre-selected front-of-pack nutrition labels improve food purchases in real-life grocery shopping settings, we put 1.9 million labels on 1,266 food products in four categories in 60 supermarkets and analyzed the nutritional quality of 1,668,301 purchases using the FSA...
Christian Gollier
avril 2020
On a justifié la stratégie de confinement en France comme ailleurs par la nécessité d’étaler la courbe de l’infection, pour désengorger les services d’urgence. Mais s’il s’agit d’atteindre l’immunité collective, obtenue si au moins 70% de la population est immunisée, d’après les...
Kelly Fielding, Céline Nauges et Sarah Ann Wheeler
n° 20-1086, avril 2020
Although past findings are inconclusive, there is evidence of a negative relationship between wealth—at the household and country level—and climate change concern. One explanation for this relationship is that wealth provides a buffer against the risks of climate change, leading people in wealthy...
Douadia Bougherara, Lana Friesen et Céline Nauges
n° 20-1085, avril 2020
While much literature has focused on preferences regarding risk, preferences over skewness also have significant economic implications. An important and understudied aspect of skewness preferences is how they affect risk taking. In this paper, we design a novel laboratory experiment that elicits...
Alexis Carlier et Nicolas Treich
vol. 14, n° 1, avril 2020, p. 113–152
Research in economics is anthropocentric. It only cares about the welfare of humans, and usually does not concern itself with animals. When it does, animals are treated as resources, biodiversity, or food. That is, animals only have instrumental value for humans. Yet unlike water, trees or...
Iyad Rahwan, Jacob W. Crandall et Jean-François Bonnefon
vol. 117, n° 14, avril 2020, p. 7555–7557
Alberto Micheletti
vol. 2, n° 10, avril 2020, 5 pages
One of the difficulties with cultural group selection theory highlighted in the review by Smith (2020, Evol. Hum. Sci., 2, e7) is its inability to separate the evolutionary effects of selection of cultural traits based on biological fitness (Cultural Selection 1) from the effects of selection based...
Zachary Garfield et Edward H. Hagen
vol. 31, n° 2, avril 2020
Jérôme Bolte et Edouard Pauwels
avril 2020, p. 1–33
Modern problems in AI or in numerical analysis require nonsmooth approaches with a exible calculus. We introduce generalized derivatives called conservative fields for which we develop a calculus and provide representation formulas. Functions having a conservative field are called path...
