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Abstract
This paper calculates the rate of return to a set of cowpea research, extension and
distribution projects in Senegal to be between 31% and 92%. The results show that a
modestly funded program on a secondary crop can be successful. They also indicate that
programs may increase their effectiveness by addressing specific household needs - in this
case, by focusing on short-cycle varieties that provide food during the hunger season prior to
the traditional harvest.