Recent work in economics has developed survey-based measures of economic preferences that are "experimentally" or "behaviorally validated." We scrutinize this approach focusing on the Global Preference Survey (Falk et al., 2018, 2023). Replicating their behavioral validation on almost 2,000...

We test the effectiveness of different AI-delivered conversation protocols to increase people's motivation for change. In a large-scale experiment with 2,719 social media users, we randomly assign participants to a control conversation or one of three treatment arms: two Motivational...

This interview was commissioned in October 2019 for a special issue on "Accumulation and Politics: Approaches and Concepts" to be published by the Revue de la régulation. We submitted the text in March 2020, only to learn two months later that it won't be published. The problem, we were...