Abstract
The life spans of international organizations (IOs) can take unexpected turns. But when we reduce IO life spans simply to their existence or lack thereof, or to formal change involving the addition of new members or the revision of charters, we miss the subtler dynamics within IOs. A broader continuum of IO life spans acknowledges life, death, inertia, and change as responses to crises, and affords a more nuanced perspective on international cooperation. Through this lens, the setbacks that many IOs are currently experiencing look less extraordinary.