This study quantifies the financial burden of acute air pollution on the French healthcare system. By combining comprehensive French administrative health data for a nationally representative sample with high-resolution geospatial data on air pollution and meteorological conditions, the...

This paper studies sequential information acquisition by an ambiguity-averse decision maker (DM), who decides how long to collect information before taking an irreversible action. The agent optimizes against the worst-case belief and updates prior by prior. We show that the consideration of...

Public discord between those vaccinated and those unvaccinated for COVID-19 has intensified globally. Theories of intergroup relations propose that identifying with one's social group plays a key role in the perceptions and behaviors that fuel intergroup conflict. We test whether identification...

We review recent advances in the literature on news consumption. We first provide an overview of different empirical techniques to measure news consumption, including browser data, TV viewership data, and survey-based measures. We also discuss the pros and cons of these different techniques. We...

Agents undertaking economic decisions are exposed to an ever-increasing amount of information sources. This paper investigates how the number of available information sources impacts agents' ability to (i) select reliable sources and (ii) use their content effectively to update their beliefs. To...

We study how contingent thinking - that is, reasoning through all possible contingencies without knowing which is realized - affects belief updating. According to the Bayesian benchmark, beliefs updated after exposure to new information should be equivalent to beliefs assessed for the...

Individuals might experience negative utility from not consuming a popular product. For example, being inactive on social media can lead to social exclusion or not owning luxury brands can be associated with having a low social status. We show that, in the presence of such spillovers to...

This paper examines how beliefs and preferences drive identity-conforming consumption or investments. We introduce a theory that explains how identity distorts individuals' beliefs about potential outcomes and imposes psychic costs on benefiting from identity-incongruent sources. We substantiate...

This paper investigates and quantifies citizens' susceptibility to fake news and assesses, using a randomized control trial, the effectiveness of a policy intervention to raise awareness. We find that the average citizen lacks proficiency in identifying fake news and harbors an inflated...

Large Language Models (LLMs) have the potential to profoundly transform and enrich experimental economic research. We propose a new software framework, "alter_ego", which makes it easy to design experiments between LLMs and to integrate LLMs into oTreebased experiments with human subjects. Our...