L’objet de cet article est d’analyser l’influence des normes socialement responsables édictées par les firmes-pivots dans des accords-cadres internationaux et des codes de conduite sur les modes de gestion de l’emploi de leurs entreprises partenaires. En présentant une critique du concept de responsabilité sociale de l’entreprise, nous verrons que ces dispositifs remettent en cause la pertinence des catégories d’employeurs et de salariés en questionnant les frontières des entreprises. Soulignant l’importance structurante des pressions institutionnelles sur les comportements organisationnels, nous montrerons dans quelle mesure l’instrumentation socialement responsable est susceptible d’enrichir la compréhension des modalités de coordination interfirme où l’analyse comparative institutionnelle inspirée par l’économie des coûts de transaction reste dominante.The goal of this article is to analyse the influence of the socially responsible instrumentation of key firms on the modes of employment management of their partner businesses. Through examples of International Framework Agreements (IFA) and of Codes of Conduct (CC), we will simply try to show to what extent the problematic of the management of inter-business relations cannot be exclusively conceptualized, as the economy of transaction costs suggests, in an institutional comparative approach where economic calculation plays a predominant role. First, we will present a critical analysis of the notion of social responsibility for the firm. Without being exhaustive on this question, we will discuss five difficulties.First of all, in keeping with its normative beginnings, it presents all the characteristics of a natural normative “anthropologized” order within a logic where equity, ethics and morality almost take the place of legal rules of behaviour. Considered from this perspective, it can lead to demanding of a private operator that he become an active subject for the maintenance of public order in his sub-contracting network, that is to say, that he replaces the states in the handling of social and environmental risks. It can also lead businesses to unduly adjust their practices to the fluctuating normative demands of involved parties whose institutional legitimacy can be inversely proportional to their capacity to damage their brand image and their reputation.A second difficulty comes from the absence of a normative and substantive definition of SRE which leaves its meaning extremely vague and ill-defined. It seems less constructed around the moral personality of the business except in reference to its relations, its commitments and/or its contracts. This shift is not neutral in character. It reflects on the personalization of responsibility which distances itself from a legally inspired retrospective vision to give a prospective responsibility marked by an ethic of solicitude and a positive commitment on the part of businesses. As well, academic definitions may reduce SRE to a question of management of stakeholders without considering the implications brought ...