Peer learning is a powerful way to stimulate collective thinking and develop innovative solutions to the social and environmental challenges we now face. As part of the OECD Global Action, Peer-learning Partnerships (PLPs) have been set up to promote knowledge exchange and experience sharing on policies and practices for social and solidarity economy development. During this session, the six PLPs selected will showcase the work they have conducted so far and share lessons learnt, challenges and success factors to support and stimulate social and solidarity economy development. Key questions: • What are we learning from the experience of PLPs to boost social and solidarity economy development? • What is working and what needs to be improved in the actions they are taking? • What role can international peer learning play in promoting social and solidarity economy development going forward?