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Mathieu Lefebvre, Pierre Pestieau, and Jérôme Schoenmaeckers
vol. 146, May 2025, 13 pages
The phenomenon of grandparents assuming the role of caretakers for their grandchildren is substantial and on the rise; a trend partially attributed to mothers’ increased participation in the workforce. While altruism is commonly assumed to be the primary driver behind such caregiving, we examine an...
Frédéric Bertrand, Anne Gégout-Petit, and Christine Thomas-Agnan
Editions Technip, May 2025, 364 pages
Les données de composition apparaissent naturellement dans beaucoup de domaines : génomique, étude du microbiote, chimiométrie, épidémiologie, marketing, économie politique, usage des sols, nutrition, etc. Il s’agit de vecteurs à composantes positives que l’on souhaite utiliser dans une méthode...
Marie-Benoît Magrini, Raphaèle-Jeanne Aubin-Brouté, Zohra Bouamra-Mechemache, Gérard Marty, and Annick Vignes
Éditions Quae, May 2025
Face aux enjeux de compétitivité, de formation des prix et de répartition de la valeur, la contractualisation suscite des débats récurrents. Cet ouvrage propose une analyse approfondie des usages et impacts des contrats dans la construction des échanges de biens agricoles, forestiers et...
Jean-Pierre Amigues, and Gilles Lafforgue
vol. 82, n. 101481, May 2025, 22 pages
We develop a dynamic model of energy use that relies on three primary sources: a ‘dirty’ fossil resource, a ‘clean’ fossil resource equipped with a specific abatement device, and a carbon-free renewable energy source. The total amount of carbon emissions is limited by a given carbon budget....
Dale Whittington, Céline Nauges, and Richard Damania
n. 20 064052, May 2025
This paper describes three phases that cities go through for the delivery of municipal water and sanitation services, identifying the main political, technological, socio-institutional, financial, public health forces of disequilibria that push cities along this development path. Data from the...
Marina Kontalexi, Alexandros Gelastopoulos, and Pantelis Analytis
May 2025, revised June 10, 2026, pp. 1086–1090
Theoretical work on sequential choice and large-scale experiments in online ranking and voting systems has demonstrated that social influence can have a drastic impact on social and technological systems. Yet, the effect of social influence on online rating systems remains understudied and the few...
Pascal Bégout, and Jesus Ildefonso Diaz
vol. 53, May 2025, pp. 1–15
Dylan Hogan, Eyal G. Frank, Josephine Gantois, and Anouch Missirian
vol. 115, May 2025, pp. 403–408
Global action to slow biodiversity loss is critically needed but comes at substantial cost. In this article, we assess the effectiveness of local ballot measures for land-based conservation projects in the United States as a way to increase bird abundance, a key conservation indicator. Using a...
Philippe De Donder
Toronto, vol. 58, n. 2, May 2025, pp. 414–417, Toronto
Jean-Paul Décamps, Fabien Gensbittel, and Thomas Mariotti
vol. 50, n. 2, May 2025, pp. 1478–1513
We study the optimal investment policy of a firm facing both technological and cash-flow uncertainty. At any point in time, the firm can decide to invest in a standalone technology or to wait for a technological breakthrough. Breakthroughs occur when market conditions become favorable enough,...
