ABSTRACT Inter-governmental organizations (IGOs) have proliferated since World War II and have evolved into significant social actors shaping global governance. The article contends that IGOs, through roles, contribute to the dense network of social expectations, adding a nuanced layer beyond the structural aspects of the international system. The article asserts that IGOs, confronted with changing global dynamics, engage in organizational role learning (ORL) to manage state role conflicts and contribute to international order. While existing scholarship often references roles descriptively, this article advocates for a roles-based perspective, positioning it within the social constructivist paradigm. The article introduces the concept of ORL and applies it to case studies on ASEAN and the African Union, revealing shifts in role conceptions and emphasizing the crucial role of ORL in maintaining organizational efficacy. The study contributes to understanding the intricate interplay between IGOs, their roles, and the evolving global landscape.
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