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David Martimort, Guillaume Pommey et Jérôme Pouyet
vol. 164, octobre 2022, p. 25–44
Modern airports provide commercial services to passengers in addition to aeronautical services to airlines. We analyze the optimal regulation design of the airport when the airport also invests in the quality of its infrastructure. The optimal regulation can be implemented with a price-cap and a...
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...
Bruno Jullien et Matthieu Bouvard
n° 22-1376, octobre 2022, révision mars 2023
We study a cost-sharing mechanism where a content provider contributes to covering the costs incurred by a network operator when delivering content to consumers. The costshare not only boosts the content provider's incentives to moderate trac but also aects the price composition for consumers...
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...
Farid Gasmi, Dorgyles Kouakou et Maruf Sanni
n° 22-1368, octobre 2022
At the turn of the millennium, developing countries face a twofold societal challenge. First, these countries need to understand the deep principles underpinning informality, which is by now recognized as a structuring phenomenon of their economies. Second, for reasons related to both intra- and...
Jean-Paul Décamps, Fabien Gensbittel et Thomas Mariotti
n° 22-1374, octobre 2022, révision décembre 2025
We study a symmetric-information war of attrition in which the players' rewards depend on exogenous market conditions evolving as a homogeneous linear diffusion process. Using that a Markovian strategy can be represented by a stopping region along with an intensity measure of stopping, we fully...
Ankur Pandya, Mike Paulden, Jinyi Zhu, Tara A. Lavelle et James K. Hammitt
vol. 42, n° 7, octobre 2022, p. 885–892
Background: Decisions based on cost-effectiveness analyses (CEAs) using equal discount rates for health and cost outcomes are consistent with using a constant cost-effectiveness threshold over time. We sought to analyze trends in author-reported cost per quality-adjusted life-year (QALY) thresholds...
James K. Hammitt
n° 71, octobre 2022
Downside risk aversion (downside RA) and decreasing absolute risk aversion (DARA) are different concepts that describe preferences for which the harm from bearing risk is lessened by an increase in wealth. This note presents some intuitive explanations of the difference between the two concepts...
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...
