This paper is based on an ongoing joint work with David Sahn and Xiaobo Zhang.

Aflatoxins are poisons that occur naturally in the environment. They are produced mainly by the Aspergillus flavus and Aspergillus parasiticus fungi, which can affect many of important staple crops: maize, sorghum, millet, rice, oilseeds, spices, groundnuts, tree nuts, and cassava. Hot, humid,...

This paper evaluates farmers’ willingness to pay (WTP) for the vegetative propagated orange fleshed sweetpotato (OFSP) planting material that is many times considered as a public good. Famers’ WTP for OFSP vines was elicited by conducting a real choice experiment (RCE) among 121 small...

Replaced with revised version of paper 07/02/10.

This paper is based on our ongoing joint work with Ravi Kanbur. Xi Chen is grateful to Ravi Kanbur for invaluable comments, guidance and encouragement. For comments and suggestions, please direct correspondence to Xi Chen at xc49@cornell.edu.

Numerous national transfer programs around the world are designed with uniform benefit schedules imposed by central governments, but implemented by local governments. The Productive Safety Net Program (PSNP) in Ethiopia, the second largest safety net in Sub Saharan Africa, is one such program....

This is a draft paper, submitted in advance of presentation at the 2014 Annual Meeting of the Agricultural & Applied Economics Association.

Pro-poor growth has been identified as one of the most promising pathways to achieve the Millennium Development Goals (MDGs) or any subsequent set of goals aiming to reduce poverty worldwide. Related research has developed a multitude of instruments to measure pro-poor growth using absolute and...

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...