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Jean-Paul Décamps, Fabien Gensbittel et Thomas Mariotti
n° 22-1374, octobre 2022, révision juin 2024
We study a symmetric-information war of attrition in which the players’ payoffs depend on exogenous market conditions that evolve according to a homogeneous linear diffusion. Using that a Markov strategy can be represented as a stopping region along with an intensity measure of stopping, we fully...
Giuliana Spadaro, Catherine Molho, Jan-Willem Van Prooijen, Angelo Romano, Cristina O. Mosso et Paul A.M. Van Lange
octobre 2022
Corruption is a pervasive phenomenon that affects the quality of institutions, undermines economic growth and exacerbates inequalities around the globe. Here we tested whether perceiving representatives of institutions as corrupt undermines trust and subsequent prosocial behaviour among strangers....
Frédéric Cherbonnier et Christian Gollier
vol. 43, n° 4, octobre 2022
When evaluating public and private investment projects, those that contribute more to the collective risk should be more penalized through an upward adjustment of their discount rate. This paper shows how to estimate the risk-adjusted discount rate for different projects, with applications to the...
Ilaria Pretelli, Erik Ringen et Sheina Lew-Levy
vol. 8, n° 41, octobre 2022
Our species’ long childhood is hypothesized to have evolved as a period for learning complex foraging skills. Researchers studying the development of foraging proficiency have focused on assessing this hypothesis, yet studies present inconsistent conclusions regarding the connection between...
Laurent Miclo
vol. 184, octobre 2022, p. 275–322
Consider finite state space irreducible and absorbing Markov processes. A general spectral criterion is provided for the absorbing time to be close to an exponential random variable, whatever the starting point. When exiting points are added to the state space, our criterion also insures that the...
Bastien Cabarrou, Eve Leconte, Patrick Sfumato, Jean Marie Boher et Thomas Filleron
vol. 22, n° 278, octobre 2022
Given the inherent challenges of conducting randomized phase III trials in older cancer patients, single-arm phase II trials which assess the feasibility of a treatment that has already been shown to be effective in a younger population may provide a compelling alternative. Such an approach would...
Pierre Pestieau et Xavier Flawinne
octobre 2022, 192 pages
Les sociétés contemporaines font face au défi du vieillissement de la population. Nous vivons de plus en plus longtemps, et en bonne santé. Mais tout le monde ne bénéficie pas de cette longévité accrue de la même façon. Combien coûte le vieillissement ? À quelles conditions peut-on vieillir...
Pierre Dubois et Gosia Majewska
n° 22-1380, octobre 2022, révision juin 2025
In many industries, the market structure determines the level of both price competition and promotional activities. We study how price and advertising strategies change when firms merge in pharmaceutical markets in the US. We show that across all drug markets, although mergers do indeed increase...
Tuan Anh Luong, Manh-Hung Nguyen, N.T. Khuong Truong et Kien Le
n° 22-1373, octobre 2022
This paper investigates the extent to which exposure to climate volatility can in-fluence individual migration decisions in Vietnam, based on the historical rainfall data from 70 weather stations in Vietnam and the Vietnam Access to Resources House-hold Survey. Utilizing the exogenous variation in...
Patrick Rey, Yossi Spiegel et Konrad Stahl
n° 22-1375, octobre 2022, révision avril 2024
We study the feasibility and profitability of predation in a dynamic environment, using a parsimonious infinite-horizon, complete information setting in which an incumbent repeatedly faces potential entry. When a rival enters, the incumbent chooses whether to accommodate or predate it; the entrant...
