In Mexico, Scott and Shah (2004) advocate to downsize pump capacity while increasing irrigation efficiency, and to shift to lower-water-demand crops to address long-term groundwater overdraft. Regions with increasingly scarce water resources are encouraged to move from "more crop (and jobs) per drop" to "more cash and nature per drop" (Lopez-Gunn et al., They may be worth considering especially in situations of increasingly visible scarcity or externalities so long as they are built on sufficient information about the hydrogeology and that they support a larger regulatory framework.