At the turn of the 21st century, the architecture of the international system has undergone important changes in different areas. In international development cooperation arena new modalities, new actors and new relationship dynamics among them have changed the framework and definition of legitimate practices of this system. South-South cooperation consolidated itself as an alternative practice, encompassing a distinct flow than that of comprehended by Official Development Assistance. These changes consolidated new institutional arrangements guiding agents relations in the field of international development cooperation. Inspired by Pierre Bourdieu s theoretical-methodological framework and based on the analysis of the triad doxa, capitals and practices, this thesis argues that global South agents articulated themselves to maximize their capitals in the field, fraying the edges and tensioning the field s doxa. In light of the Brazilian historical trajectory in the field and of the trilateral cooperation as one of the new arrangements guiding relations among agents, this research aims to understand in which way this mobilization of capital advanced by South-South cooperation impacts in the international cooperation for development governance.