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Maximilian Müller, Joan Hamory, Jennifer Johnson-Hanks, and Edward Miguel

vol. 76, n. 2, July 2022, pp. 169–189

Fertility preferences have long played a key role in models of fertility differentials and change. We examine the stability of preferences over time using rich panel data on Kenyan women's fertility desires, expectations, actual fertility, and recall of desires in three waves over a nine-year...

Johannes Hörner, Nicolas Klein, and Sven Rady

vol. 89, n. 4, July 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’...

David Martimort, and Lars Stole

vol. 17, n. 3, July 2022, p. 1145–1181

We present a set of necessary and sufficient conditions for a class of optimal con- trol problems with pure state constraints for which the objective function is lin- ear in the state variable but the objective function is only required to be upper semicontinuous in the control variable. We apply...

Takuro Yamashita, and Alex Smolin

July 2022

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...

Takuro Yamashita, and Niccolò Lomys

July 2022, p. 334

We study the role of information structures in mechanism design problems with limited commitment. In each period, a principal offers a ''spot'' contract to a privately informed agent without committing to future spot contracts, and the agent responds to the contract. In contrast to the classical...

Daniel Herrera-Araujo, Christoph Rheinberger, and James K. Hammitt

vol. 84, n. 102627, July 2022

Many stated-preference studies that seek to estimate the marginal willingness-to-pay (WTP) for reductions in mortality or morbidity risk suffer from inadequate scope sensitivity. One possible reason is that the risk reductions presented to respondents are too small to be meaningful. Survey...

James K. Hammitt

vol. 84, n. 102643, July 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...

Manvir Singh, and Zachary Garfield

vol. 6, n. 571, July 2022, pp. 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...

Koen Jochmans, and Vincenzo Verardi

vol. 37, n. 6, July 2022, pp. 1121–1137

This paper introduces instrumental-variable estimators for exponential-regression models that feature two-way fixed effects. These techniques allow us to develop a theory-consistent approach to the estimation of cross-sectional gravity equations that can accommodate the endogeneity of policy...

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, and Samuel Mehr

July 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...