Keywords: Participatory democracy, participatory budgeting, Porto Alegre, representation, social justice
The article analyses some relatively new aspects of the Participatory Budgeting in Porto Alegre. In particular it tackles the double bond for the "Conselho do Orçamento Participativo" (imperative mandate and budget constraint according to redistributive justice), as well as the rule providing for an equal proportion between the participants at the assemblies and the number of delegates for each Forum. Participatory budgeting is suggesting to be a procedure aimed at adopt fair decision from a social point of view, and not only at promote the largest political participation of the citizens. According to the author the originality of the Brazilian experiment is to propose the formalisation of "constitutional" rules for achieving social justice, beyond the virtues of popular participation.