We report the results of over 30 experiments to study the elasticity of economic decisions with respect to fundamentals. Our experiments cover a broad range of domains, from choice and valuation to belief formation, from strategic games to generic optimization problems, involving investment,...

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...

We test the effectiveness of different AI-delivered conversation protocols to increase people' 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 Interviewing...

This paper is the first to meta-analyse the literature on the causal effects of school-meal programmes on children's behavioural, health and educational outcomes in developed countries, while addressing potential publication bias and heterogeneity between studies. We create a sample of 2,821...