There is already a lot of research, but the knowledge it generates is by no means always accessible or usable for policy-makers and practitioners. That is why the platforms devote a lot of energy to mapping and using existing knowledge. In addition, there is a need for new knowledge on specific issues that affect many actors. These vary from very practical to more theoretical questions. One example is applied research into the local marketing of food crops. Another (more policy-related) example is successful policy for productive employment in African partner countries. The knowledge gathered and produced by the platforms is ploughed back into policy-making and implementation and other practices. The participants and their networks apply the knowledge in a joint learning process.