Participatory budgeting implemented from 2001 to 2004 in São Paulo, Brazil, is an example of transformative participation. The exercise is a telling in two regards. First, by relying on an affirmative action methodology, it was institutionally designed to encourage and sustain, throughout the entire cycle, the participation of historically disadvantaged groups or segments of the population: Afro-Brazilians, senior citizens, children and adolescents, youth, the LGBT community, women, indigenous groups, the homeless and people with disabilities.