original_query: What are the challenges associated with centralized decision-making in Mexico's water supply and sanitation sector?
query: What are the challenges associated with centralized decision-making in Mexico's water supply and sanitation sector?
answer: Centralized decision-making in Mexico's water sector faced challenges due to exceeding capacity with high urban population growth (1970s), economic collapse requiring restricted federal spending (1982), and lack of necessary resources/technical assistance at the municipal level following decentralization in the 1980s.  The belief that water provision should be a federal 'gift' may also stem from the centralization period.