LYSA took part in the agora on PPPs (public-private partnerships) and presented its participation in the medium-sized towns in developing countries, in particular in Palmira in Colombia with its subsidiary ACUAVIVA and in Haiti with its subsidiary, the Société des eaux de Saint-Marc. After having made reference to the Marin report by the World Bank (2009) "The priority of PPPs must be to use private operators to improve the operational efficiency and the quality of service, rather than trying to attract private funding." François-Marie Perrot added that PPP was a way of sharing the results culture: The public sector has defined objectives and the private player is forced to succeed. This makes it necessary to achieve information symmetry: no leading people up the garden path, but total transparency, and an alliance to resolve problems together. PPPs allow the construction of local knowledge by combining different people's experience, techniques and working together in the quest for efficiency. A public private partnership constitutes a "school of management" LYSA advocates participative PPPs which rely on people participating at grassroots level and believes that transparent, shared management stimulates the creativity of these players: management methods, cover, pricing, TTT (tariffs, taxes, transfer)… and realism!