One of the most important groundwater problems in Oregon, Washington and Idaho is the long-term decline of the groundwater surface level, which has been intensified by wells through discharging water from aquifers. Groundwater contamination from agriculture aggravates the depletion problem in...

An uuportant question in the agncultural development hterature ts the relation between technology and production uncertainty. In tlus paper, a flexible, moment-based approach to production analysis 1s used to measure the technologtcal detenninants of production risk of Egyptian summer field...