decent work; outsourcing; production chain; responsibility; Constitution; human rights; fundamental labor rights.

The present research aims to present a theory of responsibility of the leading companies of decentralized corporate production chains, organized around external outsourcing, for the social and labor human rights of outsourced workers, in order to face precarious work processes in their outsourced links. In order to understand the precariousness of labor in the outsourcing strata, we begin by studying the central historical role of production chains in the extremely unequal international division of labor between the economic center and periphery of the world system, in which the hierarchical rationality of the asymmetrical power relations waged within the decentralized corporate production chains induces the maximum restrictive rationalization of working conditions in outsourced spaces. Under the impulse of flexible and fragmented productive organization models, paradigmatic of neoliberal economic globalization, central economic agents intensify the outsourcing of productive cycles that demand greater use of labor and natural resources, inducing the lowering of labor remuneration in order to extract the maximum surplus from the final product. The thesis analyzes the normative instruments applicable to this reality, at the level of International Human Rights Law, International Labor Law and Brazilian Constitutional Law, and based on the theoretical paradigm of the fundamental right to decent work, which synthesizes the philosophical-constitutional orientation of social valorization of work, proposes interpretations aimed at affirming the objective, direct and joint liability of the company-leader of the decentralized corporate productive chain for the prevention and reparation of violations perpetrated to the socio-labor human rights of outsourced workers in its productive chain. With this, the research aims to assist the construction of legal-interpretative mechanisms of public governance of decent work in global and local commodity chains that operate in the national territory, in order to promote the full and democratic access of fundamental human rights of workers in all productive instances.