Food production in many African countnes has in recent years not expanded fast enough to keep up with population growth. Dimimshmgself-sufficiency and food security and the consequent increase in food imports of many African countnes are causing great concern. Amongst all food items, wheat...

The evidence provided in this paper supports the view that the evaluation of the impacts of new technologies must be set in a general equilibrium framework if the results are to valid. The paper also provides support for the need to bring into such impact analyses the effects on imcome...