Recherche avancée

Takuro Yamashita et Alex Smolin

juillet 2022, p. 870

We study information design in games with a continuum of actions such that the payoff of each player is concave in his action. A designer chooses an information structure--a joint distribution of a state and a private signal of each player. The information structure induces a Bayesian game and is...

Koen Jochmans

vol. 117, n° 538, juillet 2022, p. 887–896

We consider inference in linear regression models that is robust to heteroskedasticity and the presence of many control variables. When the number of control variables increases at the same rate as the sample size the usual heteroskedasticity-robust estimators of the covariance matrix are...

Manvir Singh et Zachary Garfield

vol. 6, n° 571, juillet 2022, p. 930–940

Researchers argue that third parties help sustain human cooperation, yet how they contribute remains unclear, especially in small-scale, politically decentralized societies. Studying justice among Mentawai horticulturalists in Indonesia, we examined evidence for punishment and mediation by third...

James K. Hammitt

vol. 84, n° 102643, juillet 2022

The social value of decreasing health risks can be evaluated using benefit-cost analysis (BCA), cost-effectiveness analysis (CEA), or a social-welfare function (SWF). These frameworks can produce different social preference rankings of interventions depending on how their health effects and costs...

Johannes Hörner, Nicolas Klein et Sven Rady

vol. 89, n° 4, juillet 2022, p. 1948–1992

This article considers a class of experimentation games with Lévy bandits encompassing those of Bolton and Harris (1999, Econometrica, 67, 349–374) and Keller, Rady, and Cripps (2005, Econometrica, 73, 39–68). Its main result is that efficient (perfect Bayesian) equilibria exist whenever players’...

Fabien Gensbittel, Marcin Peski et Jérôme Renault

vol. 17, n° 3, juillet 2022, p. 1225–1267

We define the distance between two information structures as the largest possible difference in value across all zero-sum games. We provide a tractable characterization of distance and use it to discuss the relation between the value of information in games versus single-agent problems, the value...

Courtney Hilton, Cody Moser, Mila Bertolo, Harry Lee-Rubin, Dorsa Amir, Constance Brainbridge, Jan Simson, Dean Knox, Luke Glowacki, Elias Alemu, Andrzej Galbarczyk, Grazyna Jasienska, Cody Ross, Mary Beth Neff, Alia Martin, Laura Cirelli, Sandra Trehub, Jinqi Song, Minju Kim, Adena Schachner, Tom Vardy, Quentin Atkinson, Amanda Salenius, Jannik Andelin, Jan Antfolk, Purnima Madhivanan, Anand Siddaiah, Caitlyn Placek, Gul Deniz Salali, Sarai Keestra, Manvir Singh, Scott Collins, John Patton, Camila Scaff, Jonathan Stieglitz, Silvia Ccari Cutipa, Cristina Moya, Rohan Sagar, Mariamu Anyawire, Audax Mabulla, Brian Wood, Max Krasnow et Samuel Mehr

juillet 2022

When interacting with infants, humans often alter their speech and song in ways thought to support communication. Theories of human child-rearing, informed by data on vocal signalling across species, predict that such alterations should appear globally. Here, we show acoustic differences between...

Jeffrey A. Friedman

vol. 98, n° 4, 5 juillet 2022, p. 1289–1305

International Relations scholars frequently warn that the American political system has become too fractured to sustain a coherent grand strategy. This perception generally rests on two premises: that President Donald Trump led an unprecedented assault on established principles of US foreign policy...

François Salanié (Toulouse School of Economics)

juin 2022

Manon Costa, Sébastien Gadat et Lorick Huang

n° 22-1342, juin 2022, révision novembre 2023

This article studies and solves the problem of optimal portfolio allocation with CV@R penalty when dealing with imperfectly simulated financial assets. We use a Stochastic biased Mirror Descent to find optimal resource allocation for a portfolio whose underlying assets cannot be generated exactly and...