Recherche avancée

Stéphane Villeneuve, Bruno Biais, Hans Gersbach, Jean-Charles Rochet et Ernst-Ludwig von Thadden

n° 24-1511, février 2024

We analyze dynamic capital allocation and risk sharing between a principal and many agents, who privately observe their output. The state variables of the mechanism design problem are aggregate capital and the distribution of continuation utilities across agents. This gives rise to a Bellman...

Sylvain Chabé-Ferret, Philippe Le Coent, Caroline Lefebvre, Raphaele Préget, François Salanié, Julie Subervie et Sophie Thoyer

n° 24-1512, février 2024

Nudges are increasingly used to alter the behavior of economic agents as an alternative to monetary incentives. However, little is known as to whether nudges can backfire, that is, how and when they may generate effects opposite to those they intend to achieve. We provide the first field evidence...

Madalina Vlasceanu, Kimberly C. Doell, Joe Bak-Coleman, Boryana Todorova, Michael M. Berkebile-Weinberg, Samantha J. Grayson, Yash Patel, Danielle Goldwert, Yifei Pei et Sylvie Borau

vol. 10, n° 6, février 2024

Effectively reducing climate change requires marked, global behavior change. However, it is unclear which strategies are most likely to motivate people to change their climate beliefs and behaviors. Here, we tested 11 expert-crowdsourced interventions on four climate mitigation outcomes: beliefs,...

Romain Espinosa et Nicolas Treich

vol. 216, n° 108025, février 2024

We study a simple model of consumption of animals in which consumers exhibit altruism towards animals. Consumers can choose both the quantity and the quality of animal lives. This model gives rise to a public good problem: at the market equilibrium, quality is too low, and quantity is too high when...

Marc Arnaudon, Koléhè Coulibaly-Pasquier et Laurent Miclo

n° 24-1510, février 2024

This paper proves that the separation convergence toward the uniform distribution abruptly occurs at times around lnpnq{n for the (time-accelerated by 2) Brownian motion on the sphere with a high dimension n. The arguments are based on a new and elementary perturbative approach for estimating...

Laurent Miclo

n° 24-1504, février 2024

Helmholtz decompositions break down any vector field into a sum of a gradient field and a divergence-free vector field. Such a result is extended to finite irreducible and reversible Markov processes, where vector fields cor-respond to anti-symmetric functions on the oriented edges of the...

Valentin Hubner, Manuel Staab, Christian Hilbe, Krishnendu Chatterjee et Maria Kleshnina

vol. 121, n° (10) e2315558121, février 2024

Direct reciprocity is a powerful mechanism for cooperation in social dilemmas. The very logic of reciprocity, however, seems to require that individuals are symmetric, and that everyone has the same means to influence each others’ payoffs. Yet in many applications, individuals are asymmetric....

David Bardey, Philippe De Donder et Vera Zaporozhets

n° 24-1507, février 2024, révision septembre 2025

This survey deals with the economic academic literature on diagnostic tests, with a focus first on the determinants of the use of these tests by healthcare providers, and then on the incentives to develop new diagnostic tests. It is structured in four parts. The first part provides general results...

Marc Arnaudon, Koléhè Coulibaly-Pasquier et Laurent Miclo

n° 24-1509, février 2024

Given an intertwining relation between two finite Markov chains, we investigate how it can be transformed by conditioning the primal Markov chain to stay in a proper subset. A natural assumption on the underlying link kernel is put forward. The three classical examples of discrete Pitman, top-to-...

Jorge Peña, Aviad Heifetz et Georg Nöldeke

vol. 154, février 2024, p. 10–23

Cooperation usually becomes harder to sustain as groups become larger because incentives to shirk increase with the number of potential contributors to collective action. But is this always the case? Here we study a binary-action cooperative dilemma where a public good is provided as long as not...