Fish farming is considered as a complement to fish production in Côte d’Ivoire. Better use of resources in the production process would ensure sustainable fish production. This study analyzes the resource efficiency and economic efficiency of 32 fish farms in the South East of Côte d’Ivoire using Data Envelopment Analysis (DEA) model and Cost-Benefit Analysis. The results revealed that fish farmers showed a low performance with an average technical efficiency score of 0.738 (CRS) and 0.575 (SBM) and an average economic score of 0.553. Fish farmers using industrial feed are the most technically and economically efficient. Through DEA model scenarios, the study shows that fish farmers generated excesses in resource utilization causing a shortfall in output. The scenario-3 based on slacked-based model minimizing resources simultaneously with a maximization of output indicated that a reduction of excesses in resources would have increased the output of 16.18%. Finally, the cost benefit analysis shows that, overall, fish farms achieved a positive gross and net profit margin. This study suggests that policy actors should play an important role in facilitating fish farmers’ access to feed and quality fingerlings. In addition, fish farmers must be trained on good practices for sustainable production and pond management.
Fish farming is considered a complement to fish production in Côte d’Ivoire. Better use of resources in the production process would ensure sustainable fish production. This study analyzes the resource efficiency and economic efficiency of 32 fish farms in the southeast of Côte d’Ivoire using a data envelopment analysis (DEA) model and cost-benefit analysis. The results revealed that fish farmers showed low performance, with average technical efficiency scores of 0.738 (CRS) and 0.575 (SBM) and an average economic score of 0.553. Fish farmers using industrial feed are the most technically and economically efficient. Through DEA model scenarios, the study shows that fish farmers generated excesses in resource utilization, causing a shortfall in output. Scenario-3 based on the slack-based model minimizing resources simultaneously with a maximization of output indicated that a reduction of excesses in resources would have increased the output by 16.18%. Finally, the cost benefit analysis shows that, overall, fish farms achieved a positive gross and net profit margin. This study suggests that policy actors should play an important role in facilitating fish farmers’ access to feed and quality fingerlings. In addition, fish farmers must be trained on good practices for sustainable production and pond management.
This paper analyses the impact of climate variability on cereal, root and tuber crop diversification for selected West African countries during the period 1965-2014. The crop diversification index, combining cereal, root and tuber crops, was calculated through the composite entropy index. Climate variability is measured by the coefficient of variation of temperature and precipitation. A seemingly unrelated regression was used to estimate the relationship between climate variability and crop diversification by controlling for supply- and demand-side factors of crop diversification. Overall, the results reveal that variability in temperature and precipitation over decades did not have an adverse effect on cereal root and tuber crop diversification. A detailed analysis showed that Niger and Togo have been the most adapted to climate variability, while Ghana was the most affected, mainly by precipitation variability. The results also indicated that, on the supply side, the availability of agricultural land contributed to crop diversification. Productivity, which is expected to increase crop diversification, was positive and significant in very few countries. In the others, it was not enough to improve crop diversification. On the demand side, population growth and consumption led to crop diversification, particularly in the consumption of roots and tuber crops. This study suggests that greater diversification would mitigate the negative impact of climate variability. Therefore, regional and national agricultural policies aimed at increasing productivity are necessary to encourage farmers to diversify food crops under climate variability.
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