Recherche avancée

Fabrice Collard, Frédéric Boissay, Jordi Galì et Cristina Manea

2025, à paraître

Catherine Molho et Linh Vu

vol. 66, n° 102107, décembre 2025

Altruistic decisions are central to civic engagement and humanitarian efforts. However, altruistic behavior is often context-dependent rather than consistent—the same individuals who act generously in one situation may behave selfishly in another. Here, we review research on this phenomenon, which...

Doh-Shin Jeon, Jay Pil Choi et Michael Whinston

2025, à paraître

We develop a leverage theory of tying in markets with network effects. When a monopolist in one market cannot perfectly extract surplus from consumers, tying can be a mechanism through which unexploited consumer surplus is used as a demand-side leverage to create a “quasi-installed base” advantage...

Randall C. Thompson, Benjamin C. Trumble, Daniel Cummings, Angela Neunuebel, Paul L. Hooper, Samuel Wann, Adel H. Allam, Frances Neunuebel, Benjamin Gans, Samantha I. King, Edmond Seabright, Caleb Finch, Margaret Gatz, Kenneth Buetow, Michael I. Miyamoto, Guido Lombardi, Linda Sutherland, James Sutherland, Christopher Ward, Madeleine J. Lee, Ashna Mahadev, Daniel Eid Rodriguez, David E. Michalik, Chris Rowan, Tianyu Cao, Jonathan Stieglitz, Cameron M. Quick, Gregory Thomas, Jagat Narula, Domini Dey, Michael Gurven et Hillard Kaplan

n° 101271, 2025

Jean Tirole

sous la direction de Subramanian Rangan, Oxford University Press, partie I, chapitre 2, 2025, p. 59–70

Any scientific discipline—any theory, formal or informal—rests on assumptions. These assumptions matter, and in the case of social sciences, they influence our vision of society and our policy recommendations. This chapter reviews and comments on assumptions most commonly made by economists—...

Pierre Dubois et Gökçe Gökkoca

2025, à paraître

Antimicrobial resistance (AMR) increases healthcare costs, hospital stays, and mortality. This study examines how AMR affects antibiotic prescribing for cystitis in France (2002–2019), using data from general practitioners. A decision model is developed to capture prescribing behavior with and...

Eran Shmaya et Bruno Ziliotto

vol. 63, n° 3, 2025

We consider a mean-field game model in which the cost functions depend on a fixed parameter referred to as the “state,” which remains unknown to the players. Players acquire information about the state through private signals received during the course of the game. We derive a mean-field system...

André Grimaud et Luc Rougé

vol. 29, n° e98, 2025, p. 1–30

Technical progress is considered a key element in the fight against climate change. It may take the form of technological breakthroughs, that is, shocks that induce significant leaps in the stock of knowledge. We use an endogenous growth framework with directed technical change to analyze the...

Olivier Faugeras

2025, à paraître

Compositional Data (CoDa) is usually viewed as data on the simplex and is studied via a log-ratio analysis, following the classical work of Aitchison (1986). We propose to bring to the fore an alternative view of CoDa as a stick breaking process, an approach which originates from Bayesian...

Daniel L. Chen et Susan Yeh

vol. 128, n° 103155, 2025, à paraître

Does obscenity law affect moral values and does it matter? Using random judge assignment and all U.S. obscenity precedents since 1958, we report four key findings. Democratic judges, more than Republicans, tended to vote progressively in obscenity cases. Such progressive rulings liberalized sexual...