TY - JOUR A1 - Lundgren, Magnus A1 - Tallberg, Jonas A1 - Sommerer, Thomas A1 - Squatrito, Theresa T1 - When are international organizations responsive to policy problems? T2 - International studies quarterly : the journal of the International Studies Association N2 - When are international organizations (IOs) responsive to the policy problems that motivated their establishment? While it is a conventional assumption that IOs exist to address transnational challenges, the question of whether and when IO policy-making is responsive to shifts in underlying problems has not been systematically explored. This study investigates the responsiveness of IOs from a large-n, comparative approach. Theoretically, we develop three alternative models of IO responsiveness, emphasizing severeness, dependence, and power differentials. Empirically, we focus on the domain of security, examining the responsiveness of eight multi-issue IOs to armed conflict between 1980 and 2015, using a novel and expansive dataset on IO policy decisions. Our findings suggest, first, that IOs are responsive to security problems and, second, that responsiveness is not primarily driven by dependence or power differentials but by problem severity. An in-depth study of the responsiveness of the UN Security Council using more granular data confirms these findings. As the first comparative study of whether and when IO policy adapts to problem severity, the article has implications for debates about IO responsiveness, performance, and legitimacy. Y1 - 2023 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/62374 SN - 0020-8833 SN - 1468-2478 VL - 67 IS - 3 PB - Oxford University Press CY - Oxford ER -