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 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.

World grains prices dramatically increased between 2007 and 2008, but rice prices especially surged. Utilizing the much larger spike in rice prices than in wheat, this article compares the response of Indian households consuming rice as the staple grain to households consuming wheat. Households...

This study explores occupational and earnings dynamics of rural non-farm economy (RNFE) in Thailand. Using occupational transition matrices, we finds significant occupational transitions in rural Thailand, mainly involving moving to non-farm employment, rather than starting businesses. Moreover,...

Replaced with revised version of paper 07/28/11. Former title: Indirect Effects of Microfinance: A Field Experiment on Formal Savings Expansion and Informal Safety Nets of the Ultra-Poor