For example, in Spain 25% of agricultural subsidies (in the context of the Common Agricultural Policy) remain coupled to production, encouraging inefficient use of water (Aldaya et al. The mechanisms and processes developed for ensuring coherence between water and sector policies, and thus financing water resources management, deserve further investigation and analysis. But these reference levels are likely to be determined with respect to individual concessions and do not reflect scarcity of the resource. Water Policy in Spain, CRC Press.