@TechReport{iza:izadps:dp17683, author={Carcillo, Stéphane and Valfort, Marie-Anne and Merino, Pedro Vergara}, title={Combating LGBTphobia in Schools: Evidence from a Field Experiment in France}, year={2025}, month={Feb}, institution={Institute of Labor Economics (IZA)}, address={Bonn}, type={IZA Discussion Paper}, number={17683}, url={https://www.iza.org/index.php/publications/dp17683}, abstract={This paper presents the first rigorous evaluation of school-based interventions aimed at reducing LGBTphobia. We focus on a classroom intervention that addresses the issue of LGBT harassment through perspective-taking and narrative exchange. Using a field experiment in France with more than 10,000 middle and high school students, we find robust evidence of strong positive effects, with variations across gender, age, and socio-economic status. We argue that changing perceptions of group norms is a key channel driving these heterogeneous effects.}, keywords={LGBT;discrimination;social norms}, }