Numerous studies have addressed the question of the econometric specification of the Environmental Kuznets Curve (EKC). This paper adds preliminary results on nonstationarity and its effect on functional form using a panel data set for the U.S. by state from 1929 to 1994. It is found that...

We advance a case for an inclusion of social capital in the environmental Kuznets curve analysis using highly disaggregated data on water pollution in Louisiana. A social capital index and other variables are used in parametric and spatial panel regression models to explain water pollution dynamics.

We estimated environmental Kuznets curve (EKC) for carbon dioxide for 16 Latin American countries using nonparametric, semi-parametric, and parametric specifications. Results indicated that most of the Latin American countries are still in the rising portion of the EKC with respect to CO2 pollution.

This study compares parametric and semiparametric smoothing techniques to estimate the environmental Kuznet curve. The ad hoc functional form where income is related either as a square or a cubic function to environmental quality is relaxed in search of a better nonlinear fit to the...

We estimated the environmental Kuznets curve for point (mercury) and nonpoint (nitrogen, phosphorus, and dissolved oxygen) source water pollutants as a function of income in parametric and semiparametric functional forms of the Panel data model. Seemingly unrelated panel formulation did not...

This study combines survey information and GIS based optimization model to identify the optimal distribution of broiler litter in crop production. The results obtained provide more plausible transportation routes than the method that does not utilize all these constraints.

Residue management system (RMS) offers increase productivity gain to farmers by increasing the organic matter. Farmers have failed to realize this gain and consequently have not adopted RMS in cotton cultivation. Benefit of adopting RMS system appears sooner than farmers would think.

We used a memory shortening transformation method to forecast the future prices of the seven selected commodities in the Southeast USA. These forecasted prices were used to find the optimal crop selection in a model farm in a representative county of each of the ten states in the Southeast US...

We calculated the profitability of using broiler litter as a source of plant nutrients using the phosphorus consistent litter application rule. The cost saving by using litter is 37% over the use of chemical fertilizer alone to meet the nutrient needs of major crops grown in Alabama. In the...

We calculated the profitability of using broiler litter as a source of plant nutrient using a phosphorus consistent litter application rule. We found that each ton of litter can be transferred cost effectively up to 164 miles from the production facilities. The minimum cost phosphorus consistent...