basinlevel management for example may require upperlevel governance to avoid inequities in water allocation within a water basin and also to ensure that the public good aspects and values of water are given sufficient recognition oecd la at the same time while intermunicipal supramunicipal and metropolitan bodies have been set up to respond to coordination challenges while creating economies of scale and improving the quality of service there might be risks of duplication and overlap of responsibilities with lower and higher levels of government the oecd developed a riskbased approach consisting of three steps knowing targeting and managing oecd d