criteria to prioritise investment projects include economic profitability reduction of extreme poverty regional development and concurrence with other investment programmes and projects conagua however the existing systems seem to support the selection of projects mostly within programmes and within subsectors and it is unclear to other stakeholders how the allocation across subsectors works there are several examples of actions taken to reduce costs and increase the efficiency of public spending that could be replicated such as taking advantage of economies of scale in the provision of water supply and sanitation services see the benefits from the creation of a intermunicipal companies in colima or adopting appropriate technologies eg rainwater harvesting in oaxaca