This book examines the interface between transnational private governance and domestic politics in South America. It explores the social and political factors that condition how ‘global’ private norms, discourses, and initiatives dealing with sustainability and CSR regulation are engaged with, hybridized, and challenged by local actors in Argentina and Brazil. Inverting the conventional approach to global governance studies, it unpacks the complex forms in which domestic political-cultural elements embed global norms and discourses with meaning and mobilizing power, conditioning their appeal to potential participants and supporters. In doing so, the author illuminates the ‘receiving side’ of private regulation and governance, developing a nuanced understanding of transnational norm diffusion wherein political and ideational factors in the global South are granted primacy over global structures, processes, and agents.