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Bence Bago, Leah Rosenzweig, Adam Berinsky et David Rand
n° 21-127, décembre 2021
Misinformation is a serious concern for societies across the globe. To design effective interventions to combat the belief in and spread of misinformation, we must understand which psychological processes influence susceptibility to misinformation. This paper tests the widely assumed -- but largely...
Bruno Jullien et Wilfried Sand-Zantman
vol. 54, n° 100880, 2021
We propose an analysis of platform competition based on the academic literature with a view towards competition policy. First, we discuss to which extent competition can emerge in digital markets and show which forms it can take. In particular, we underline the role of dynamics, but also of...
Fanny Lafouresse, Romain Jugele, Sabina Müller, Marine Doineau, Valérie Duplan-Eche, Eric Espinosa, Marie-Pierre Puissegur, Sébastien Gadat et Salvatore Valitutti
2021
Cytotoxic immune cells are endowed with a high degree of heterogeneity in their lytic function, but how this heterogeneity is generated is still an open question. We therefore investigated if human CD8+ T cells could segregate their lytic components during telophase, using imaging flow cytometry,...
Claude Crampes et Thomas-Olivier Léautier
n° 1-2021 : « Law & Economics | Concurrences », 2021, p. 66–74
Les certificats négociables sont un bon outil de promotion des activités économiques quand celles-ci permettent d’améliorer le surplus social. Les certificats blancs, parce qu’ils encouragent les activités destinées à réduire la consommation d’énergie et parce que ces activités sont des ‘biens de...
Laurent Miclo et Stéphane Villeneuve
vol. 58, n° 4, 2021, p. 1043–1063
We revisit the forward algorithm, developed by Irle, to characterize both the value function and the stopping set for a large class of optimal stopping problems on continuous-time Markov chains. Our objective is to renew interest in this constructive method by showing its usefulness in solving some...
Matthieu Bouvard et Adolfo de Motta
vol. 142, n° 3, 2021, p. 1229–1252
This paper studies an economy where demand spillovers make firms’ production decisions strategic complements. Firms choose their operating leverage trading off higher fixed costs for lower variable costs. Operating leverage governs firms’ exposures to an aggregate labor productivity shock. In...
Daniel F. Garrett
vol. 16, n° 4, 2021, p. 1281–1312
In the context of a canonical agency model, we study the payoff implications of introducing optimally-structured incentives. We do so from the perspective of an analyst who does not know the agent's preferences for responding to incentives, but does know that the principal knows them. We provide,...
Marc Ivaldi et Jiekai Zhang
vol. 79, n° 102729, décembre 2021
The empirical analysis of media platforms economics has often neglected the multi-homing behaviour of advertisers. Assuming away the cross-substitutability and/or complementarity between the advertising slots of dierent platforms could damage the quality and the robustness of counterfactual...
F.S. Fall, H. Tchakoute Tchuigoua, Anne Vanhems et Léopold Simar
vol. 295, n° 2, décembre 2021, p. 744–757
The main objective of this study is to assess the impact of gender on microfinance social efficiency. Our methodology is based on nonparametric techniques to estimate the gender effect. We use a conditional directional free disposal hull (FDH) approach as well as its robust version of order-; we...
Dirk Bergemann, Alessandro Bonatti, Andreas Haupt et Alex Smolin
2021, p. 41–58
