The purpose of this study is to evaluate agricultural producer response to opportunities to generate nutrient credits under Virginia’s water quality trading program. In 2005 the Virginia legislature passed legislation authorizing trade of nutrient reduction credits from nonpoint to...

A procedure is developed to examine the ex-post impacts of improved maize varieties on poverty in rural Ethiopia. Yield and cost effects of adoption are estimated econometrically under assumptions of both homogeneous and heterogeneous treatment effects. A backward derivation procedure is...