How does group identity affect belief formation? To address this question, we conduct a series of online experiments with a representative sample of individuals in the US. Using the setting of the 2020 US presidential election, we find evidence of intergroup preference across three distinct...

Choosing what is morally right can be based on the consequences (ends) resulting from the decision – the Consequentialist view – or on the conformity of the means involved with some overarching notion of duty – the Deontological view. Using a series of experiments, we investigate the...

A large food multinational wishes to help micro-distributors in its supply chain with the financing of a productive asset. Collaborating with the firm in Kenya, we conduct a field experiment to compare asset financing under a traditional debt contract to three alternatives that provide a greater...

Mobile phone-based informational programs are widely used worldwide, though there is little consensus on how effective they are at changing behavior. We present causal evidence on the effects of six agricultural information programs delivered through text messages in Kenya and Rwanda. The...

We evaluate how traditional parties may respond to populist parties on issues aligning with populist messages. During the 2020 Italian referendum on the reduction of members of Parliament, we conducted a large-scale field experiment, exposing 200 municipalities to nearly a million impressions of...

We show what the rational inattention model predicts about the treatment effect of information provided during a randomized control trial. This is a non-trivial question because the model implies optimal attention choice before, during, and after an information treatment. The predictions of the...