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‪This article examines the internationalisation of migration management through a study of the construction and dissemination of expertise on the link between migration and development by the United Nations Development Programme (UNDP). Through a six-month length participant observation in 2025 within its Joint Migration and Development Initiative (JMDI), the study analyses the power relationships at stake in the “co-construction” and global dissemination of this technical expertise. The article shows that it is indeed standards and criteria for political intervention that are developed and disseminated by the UNDP in technical expertise that aims at creating consensus between the interests of international elites and the global interests of world society on the one hand, and “sectoral”, national or local interests on the other.‪