Abstract
Sustainable inter-agency collaboration is essential for flood disaster risk reduction. However, some governments may be reluctant to collaborate with other stakeholders. Using the case of ODA in the Philippines as an example, this study aims to understand the problem structure of inter-agency col-laboration in ODA programmes that is aimed at reducing flood disaster risk, and to identify why re-cipient government and donor agency are likely to overlook sustainable inter-agency collaboration. This study revealed that there are three forms of missing links that cause a lack of inter-agency col-laboration, namely (i) intra-work type, (ii) inter-work type (handover) and (iii) inter-work type (com-plementarity). It was also found that ODA related to flood disaster risk reduction are managed within the silos of the legal frameworks and mission of relevant organisations and donor agencies also easily overleap the positionality of each project to achieve DRR. These lead to partial optimisation. To avoid this, it is considered essential to analyse the gaps in organisational behaviour resulting from different legal frameworks and organisational missions (profile management), to redefine the mission of pro-grammes (programme strategy management) and to ensure the ongoing management of platforms across relevant projects (platform management).