The goal of watershed scale analysis is to assign to each field unit the best set of agricultural practices in order to achieve a maximum outcome from both environmental and economic perspectives. Watershed physically based models linked to multiobjective optimization models can overcome the...

The optimal pollution permit trading system is examined when the regulator, faced with incomplete information on firms' abatement costs and delivery coefficients, seeks to minimize expected total abatement costs to meet an ex ante pollution target. Intuitively, we find that the optimal trading...

In 2008, the hypoxic zone in the Gulf of Mexico, measuring 20720 km2, was one of the two largest reported since measurement of the zone began in 1985. The extent of the hypoxic zone is related to nitrogen and phosphorous loadings originating on agricultural fields in the upper Midwest. This...

"We apply an integrated simulation-optimization framework to search for cost-efficient mix and location of agricultural conservation practices in a typical agricultural watershed for two types of nitrogen reduction targets: control of mean annual nitrogen loadings, and a "safety-first" type...