It's a bird, it's a plane, it's Superman! Using mass media to fight intolerance / Alex Armand (Universidade Nova de Lisboa, CEPR, IZA, NOVAFRICA and Institute for Fiscal Studies), Paul Atwell (Universidad Carlos III), Joseph F. Gomes (IRES/LIDAM, UCLouvain and CEPR) [und 2 weitere] ; IZA Institute of Labor Economics