The department for Economic Opportunities at SIDA is organising a one-day seminar on 'Modalities for Development Cooperation in Agriculture'. The purpose of the assignment for which Lidia Cabral has been commissioned is to review the experience with sector-based approaches in development cooperation in agriculture, from the late 1990s into the recent practice of sector budget support, discussing challenges as well as opportunities but also lessons learned from this experience when assessing new sector-wide initiatives such as CAADP.