This paper uses economic, hydrologic, and GIS modeling to assess the effectiveness of the Illinois Conservation Reserve Enhancement Program in the Lower Sangamon watershed. Our results show that for a representative five-year storm event, the acres currently enrolled in the program result in a...

Mathematical programming models are widely used in agricultural sector analysis. However, the lack of micro-level data, as well as computational requirements, necessitate the aggregation of individual producers into representative units when working at the sectoral level. This usually leads to...

This article presents a mathematical programming approach to determine a conservation strategy that maximizes preserved species' diversity under limited resource availability. Diversity is defined as the negative of total diversity loss given by the sum of genetic distances between extinct...

Professional market advisory services provide specific advice (advisory programs) to grain producers on how to market their commodities, and assist them in their efforts to manage price risk. Previous studies analyzed the effectiveness of individual services and could find only weak evidence...

U.S. pork production and processing is consolidating in larger, more economically efficient units, and shifting from the Midwest into the Southeast. A regionalmodelof farm supply and processing demand shows that smaller Midwest operations can survive only if processing capacity remains...

A multilevel optimization approach is presented for determining the optimum management of the Texas brown shrimp fishery. Independent fisher groups harvest this open access resource in a hierarchical order without cooperation among themselves or with the management authority. The special...

This article presents a mathematical programming approach to determine a conservation strategy that maximizes preserved species' diversity under limited resource availability. Diversity is defined as the negative of total diversity loss given by the sum of genetic distances between extinct...

A measure of divergence (NAD) between the distribution of individuals in a community and a target distribution is presented. When the latter is uniform, NAD measures evenness and exhibits a strong correlation with the widely used Shannon index. However, NAD offers the capability to incorporate...