Recherche avancée

Christian Bontemps, Cristina Gualdani et Kevin Remmy

n° 23-1415, mars 2023, révision 2 juillet 2025

We develop a two-stage game in which competing airlines first choose the networks of markets to serve in the first stage before competing in price in the second stage. Spillovers in entry decisions across markets are allowed, which accrue on the demand, marginal cost, and fixed cost sides. We show...

Pierre Dubois, Gosia Majewska et Valentina Reig

n° 23-1417, mars 2023

Drug shortages are a problem widely documented around the world. We develop a simple method allowing to identify shortage events and their intensity using sales data at a national level. In the case of prescription drugs, shortages occur when the quantities supplied do not meet demand at regulated...

Jeffrey A. Friedman

vol. 8, n° 1, mars 2023

Le présent article évalue les idées progressistes qui émergent au sujet de la grande stratégie des États-Unis. L'hypothèse distinctive de l'analyse des progressistes est que l'inégalité structurelle nuit aux intérêts nationaux des États-Unis. Pour remédier à ce problème, les progressistes suggèrent...

Hillard Kaplan, Paul L. Hooper, Margaret Gatz, Wendy Mack, Meng Law, Helena Chui, Linda Sutherland, James Sutherland, Christophe J. Rowan, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, David E. Michalik, Guido Lombardi, Michael I. Miyamoto, Daniel Eid Rodriguez, Adrian Juan Copajira, Raul Quispe Gutierrez, Bret A. Beheim, Edmond Seabright, Daniel Cummings, Sarah Alami, Angela Garcia, Kenneth Buetow, Caleb Finch, Gregory Thomas, Benjamin C. Trumble, Jonathan Stieglitz, Michael Gurven et Andrei Irimia

vol. 120, n° 13, mars 2023

Little is known about brain aging or dementia in nonindustrialized environments that are similar to how humans lived throughout evolutionary history. This paper examines brain volume (BV) in middle and old age among two indigenous South American populations, the Tsimane and Moseten, whose...

Tuan Anh Luong, Manh-Hung Nguyen, N.T. Khuong Truong et Kien Le

vol. 77, mars 2023, p. 326–336

This paper investigates the extent to which individual migration decisions in Vietnam can be driven by climate change, based on the historical rainfall data from 70 weather stations in Vietnam and the Vietnam Access to Resources Household Survey. Utilizing the exogenous variation in the rainfall...

Abdelaati Daouia, Gilles Stupfler et Antoine Usseglio-Carleve

vol. 10, n° 3, mars 2023

Superspreading has been suggested to be a major driver of overall transmission in the case of SARS-CoV-2. It is therefore important to statistically investigate the tail features of superspreading events (SSEs) to better understand virus propagation and control. Our extreme value analysis of...

Farid Gasmi, Dorgyles Kouakou, Paul Noumba Um et Pedro Rojas Milla

n° 23-1423, mars 2023

This paper presents an empirical application and analysis of the social contract in MENA countries based on the conceptual framework proposed by Loewe et al. (2021). We suggest a simple operational model synthesizing a social contract's three main characteristics: Participation, Protection, and...

Abdelaati Daouia, Simone A. Padoan et Gilles Stupfler

n° 23-1414, mars 2023, révision mai 2024

The use of expectiles in risk management has recently gathered remarkable momentum due to their excellent axiomatic and probabilistic properties. In particular, the class of elicitable law-invariant coherent risk measures only consists of expectiles. While the theory of expectile estimation at...

Michele Bisceglia, Salvatore Piccolo et Emanuele Tarantino

vol. 87, n° 102919, mars 2023

Two firms propose a merger to the antitrust authority. They are uninformed about the efficiencies generated by the merger, but can hire an expert to gather information on their behalf. The authority is also uninformed about the merger’s efficiencies, but can run a costly internal investigation to...

Perrin Lefebvre et David Martimort

n° 23-1419, mars 2023

Lobbying competition is viewed as a delegated common agency game under moral hazard. Several interest groups try to influence a policy-maker who exerts effort to increase the probability that a reform be implemented. With no restriction on the space of contribution schedules, all equilibria perfectly...