Economic Analysis of Research and Technology Transfer of Millet, Sorghum, and Cowpeas in Niger
The study analyzes returns to investments in Nigers research and technology transfer system for millet, sorghum, and cowpea between 1975 and 1991. Sixty-eight percent of the countrys public-sector outlays for agricultural research and 58 percent of its agricultural researchers were devoted to research on these three crops between 1986 and 1990.
Link
http://agecon.lib.umn.edu/cgi-bin/pdf_view.pl?paperid=7366&ftype=.pdf