The purpose of the study is to: 1. Draw lessons from recent experiences in humanitarian coordination. 2. Understand the advantages and disadvantages of UN coordination models – that is, the Resident/Humanitarian Coordinator or so-called ‘combined model’, the model where the Humanitarian Coordinator is separate from the Resident Coordinator, and the ‘lead agency model’ – in particular circumstances. 3. Identify features of coordination arrangements which have provided ‘added value’.