Recherche avancée

Francesca Barigozzi, Chiara Canta et Helmuth Cremer

n° 25-1655, juillet 2025

This paper studies how firms’ ownership choices and workers’ intrinsic motivation jointly shape service quality and market outcomes in labor-intensive, mission-driven sectors. Two organizations first choose whether to operate as standard for-profit or as mission-oriented firms, and then compete in...

Amy Anderson, Aaron D. Blackwell, Linda Sutherland, Thomas S. Kraft, James Sutherland, Bret A. Beheim, Daniel Cummings, Suhail Ghafoor, Paul L. Hooper, Daniel Eid Rodriguez, Andrei Irimia, Margaret Gatz, Wendy Mack, Chris Rowan, Michael I. Miyamoto, Kenneth Buetow, Caleb Finch, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, Gregory Thomas, Hillard Kaplan, Jonathan Stieglitz, Benjamin C. Trumble et Michael Gurven

vol. 11, n° 29, juillet 2025

Porous cranial lesions (cribra cranii and cribra orbitalia) are widely used by archaeologists as skeletal markers of poor child health. However, their use has not been validated with systematic data from contemporary populations, where there has been little evidence of these lesions or their health...

Tianyu Cao, Edhitt Cortez Linares, Raul Quispe Gutierrez, Daniel Eid Rodriguez, Juana Bani Cuata, Michael I. Miyamoto, Christopher Von Rueden, Daniel Cummings, Paul L. Hooper, Benjamin C. Trumble, Jonathan Stieglitz, Randall C. Thompson, Gregory Thomas, Hillard Kaplan, Daniel A. Duprez, David R. Jacobs et Michael Gurven

juillet 2025

Background Little is known about arterial stiffness in rural subsistence populations that experience few cardiovascular risk factors. We conducted a cross‐sectional study comparing 3 arterial stiffness metrics among Tsimane forager‐horticulturalists with 2 representative US cohorts. Methods...

Stefan Ambec, Claude Crampes et Stefan Lamp

n° 25-1653, juillet 2025

The energy transition requires significant investment in intermittent renewable energy sources, such as solar and wind power. New generation capacities are generally procured through fixed price contracts, such as power purchase agreements and contracts for difference, or feed-in tariffs. With...

Philippe Bontems, Marie-Françoise Calmette et David Martimort

n° 25-1652, juillet 2025

Motivated by the forthcoming terminations of most highways concessions in France, we propose a versatile model of dynamic regulation and contract renewals that describes a long-term relationship between the public authority and an incumbent operator with private information about its costs that may...

Philippe Delacote, Sylvain Chabé-Ferret, Anna Creti, Katharyn Duffy, Micah Elias, Alejandro Guizar-Coutiño, Ben Filewod, Ben Groom, Andreas Kontoleon, Gwenole LeVelly, Lara L’Horty, Anouch Missirian et Thales A. P. West

juillet 2025

A key factor undermining the credibility of carbon offsets is the evaluation of project baselines and their impact. The ex ante scenarios constructed by project developers in accordance with rules set by certification schemes have been challenged by ex post evaluations from scientists, who...

Jacques Crémer

n° 25-1651, juillet 2025

Camille Mondon, Thi-Huong Trinh, Josep Antoni Martín-Fernández et Christine Thomas-Agnan

n° 25-1650, juillet 2025

Given samples of density functions on an interval (a, b) of R, categorized according to a factor variable, we aim to test the equality of their mean functions both overall and across the groups defined by the factor. While the Functional Analysis of Variance (FANOVA) methodology is well-established...

Nadia Burani et Andrea Mantovani

vol. 235, n° 107043, juillet 2025

We consider a duopolistic market in which a green firm competes with a brown rival, and both firms offer vertically differentiated products. Consumers are heterogeneous both in their willingness to pay for hedonic quality and in their environmental concern. The latter is positively related to the...

Etienne de Montbrun et Jérôme Renault

vol. 12, n° 3, juillet 2025, p. 267–301

We study the convergence of optimistic gradient descent ascent in unconstrained bilinear games. For zero-sum games, we prove exponential convergence to a saddle-point for any payoff matrix, and provide the exact ratio of convergence as a function of the step size. Then, we introduce OGDA for...