The present study examines profitability, technical, cost and allocative efficiencies of cassava by applying Data Envelopment Analysis (DEA) of 315 farmers from three regions Delta State, Nigeria. Results revealed that cassava production was profitable (overall margin 1.93), with significant differences across regions as well as farm size. Mean levels of technical, cost and allocative efficiencies are low estimated at40%, 29% and 73% respectively, also with significant differences across regions as well as size categories. The implication is that cassava production can be increased by reallocation of resources to optimal levels, given input and output prices. results also confirmed inverse size-productivity and size-efficiency relationships in production, i.e., the marginal farms are the most productive, profitable, and efficient. pressure significantly reduces technical and cost efficiency. Extension contact improves allocative efficiency whereas it reduces technical and cost efficiency. is no gender difference in performance implying both men and women performs well. Farmers located in Delta South and Delta North are technically efficient to Delta Central. However, farmers located in Delta North are allocatively. Investment in extension services to make it more effective and improvements in are suggested as policy options.
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Awerije et al. (2014) studied this question.